Document And Entity Information
Note To Financial Statement Details Textual
Significant Accounting Policies
Note 2 - Significant Accounting Policies
Note 3 - Inventories
Customer Number 3 [Member]
Information pertaining to customer number 3 accounting for a percentage of accounts receivable.
Note 4 - Equipment and Leasehold Improvements
Note 7 - Accrued Expenses
Note 8 - Long-term Debt
Note 10 - Share-based Compensation
Note 12 - Earnings (Loss) Per Share
Note 2 - Significant Accounting Polices - Reconciliation of Cash and Restricted Cash (Details)
Income Tax Disclosure [Text Block]
Note 2 - Significant Accounting Policies - Revenue By Product (Details)
Note 3 - Inventories - Components of Inventory (Details)
Note 4 - Equipment and Leasehold Improvements, Net - Components of Equipment and Leasehold Improvements (Details)
Other assets
Note 7 - Accrued Expenses - Components of Accrued Expenses (Details)
Share-based compensation expense
us-gaap_LiabilitiesCurrent
Total current liabilities
Note 8 - Long-term Debt - Summary of Long-term Debt (Details)
Note 10 - Share-based Compensation - Shares Authorized, Available for Future Grant and Outstanding Under Each Plan (Details)
Title of Individual [Axis]
Note 10 - Share-based Compensation - Summary of Option Activity Under Stock Plans (Details)
Relationship to Entity [Domain]
Note 10 - Share-based Compensation - Summary of Non-vested Options (Details)
Note 10 - Share-based Compensation - Restricted Stock Units (Details)
Note 12 - Earnings (Loss) Per Share - Summary of Reconciliations Between the Numerator and the Denominator of the Basic and Diluted Earnings Per Share Computations (Details)
Notes To Financial Statements
Notes To Financial Statements [Abstract]
OPERATING EXPENSES:
Share-based Compensation, Stock Options, Activity [Table Text Block]
Granted, weighted average grant price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested, weighted average grant price (in dollars per share)
Forfeited, weighted average grant price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Nonvested restricted stock units, weighted average grant price (in dollars per share)
Nonvested restricted stock units, weighted average grant price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Forfeited (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Outstanding (in shares)
Nonvested restricted stock units (in shares)
Nonvested restricted stock units (in shares)
Schedule of Nonvested Share Activity [Table Text Block]
Current maturities of long-term debt
Less current maturities
cyan_LongTermDebtAndCapitalLeaseObligationsCurrentAndNoncurrent
Long-term Debt and Capital Lease Obligations, Current and Noncurrent
Sum of the carrying values as of the balance sheet date of both current and noncurrent portions of long-term debt and capital lease obligations.
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Vested (in shares)
Depreciation and amortization
2014 Directors Plan [Member]
Represents the "2014 Directors Plan."
The 2005 Plan [Member]
Represents the "2005 Plan."
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
2004 Directors Plan [Member]
Represents the "2004 Directors Plan."
cyan_DebtCovenantMinimumCurrentRatio
Debt Covenant, Minimum Current Ratio
The minimum current ratio (current assets divided by current liabilities, expressed as a ratio) as required under a debt covenant.
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Exercisable, weighted average exercise price (in dollars per share)
us-gaap_AssetsCurrent
Total current assets
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
Exercisable, weighted average remaining contractual term (Year)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
Exercisable, aggregate intrinsic value
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Exercisable (in shares)
Line of credit
Line of Credit, Current
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
Outstanding, weighted average remaining contractual term (Year)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Outstanding, aggregate intrinsic value
Granted (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue
Vested (in dollars per share)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue
Forfeited (in dollars per share)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue
Nonvested (in dollars per share)
Nonvested (in dollars per share)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
Vested (in shares)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares
Forfeited (in shares)
Interest expense, net
Common stock of $0.02 par value, shares authorized 50,000,000; 5,836,110 shares issued and outstanding at December 31, 2018 and 5,772,032 shares at March 31, 2018
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
Nonvested (in shares)
Nonvested (in shares)
Purchase of Cellana assets
Noncash or Part Noncash Acquisition, Value of Assets Acquired, Total
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Outstanding, weighted average exercise price (in dollars per share)
Common stock, shares authorized (in shares)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
Forfeited, weighted average exercise price (in dollars per share)
Common stock, shares issued (in shares)
us-gaap_ContractWithCustomerLiabilityCurrent
Customer deposits
Common stock, par value (in dollars per share)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Granted, weighted average exercise price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Exercised, weighted average exercise price (in dollars per share)
Noncash or Part Noncash Acquisitions by Unique Description [Axis]
Capital Lease Asses Payable in 36 Equal Monthly Payments [Member]
Represents information regarding to capital lease assets which are payable in 36 equal payments.
Accrued expenses
Total accrued expenses
Noncash or Part Noncash Acquisition, Name [Domain]
The 2016 Plan [Member]
Represents the 2016 Cyanotech Equity Incentive Plan (the “2016 Plan”).
Range [Domain]
Maximum [Member]
us-gaap_IncreaseDecreaseInRestrictedCash
Investment in restricted cash
Minimum [Member]
Accounts payable
Product and Service [Axis]
Revolving Credit Facility [Member]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Outstanding (in shares)
Outstanding (in shares)
Product and Service [Domain]
Range [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Preferred stock of $0.01 par value, authorized 10,000,000 shares; no shares issued and outstanding
Other accrued expenses
Preferred, issued shares (in shares)
Long-term debt, less current maturities
Total long-term debt, net of current maturities and unamortized debt issuance costs
Amount of long-term debt and capital lease obligation net of issuance costs, due after one year or beyond the normal operating cycle, if longer.
Wages, commissions, bonus and profit sharing
Interest
us-gaap_PolicyTextBlockAbstract
Accounting Policies
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment [Table Text Block]
Preferred, authorized shares (in shares)
Inventories, net
Inventories, net
us-gaap_PaymentsToAcquireProductiveAssets
Investment in equipment and leasehold improvements
Available (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Preferred stock, par value (in dollars per share)
Customer [Axis]
Cash paid to acquire Cellana assets
Payments to Acquire Buildings
Investment in Cellana asset purchase
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Customer [Domain]
Authorized (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
SHARES USED IN CALCULATION OF NET INCOME (LOSS) PER SHARE:
Income taxes
Current liabilities:
us-gaap_Assets
Total assets
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Plan Name [Axis]
Plan Name [Domain]
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total
CASH FLOWS FROM OPERATING ACTIVITIES:
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Revenue Recognition, Policy [Policy Text Block]
Statement [Line Items]
Accounts receivable, allowance for doubtful accounts
Accounts receivable, net of allowance for doubtful accounts of $27 at December 31, 2018 and $27 at March 31, 2018
Furniture and Fixtures [Member]
us-gaap_DilutiveSecurities
Effect of dilutive securities on net income
Additional paid-in capital
Bank of the West Finance [Member]
Finance agreements with Bank of the West.
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Stockholders’ equity:
Leasehold Improvements [Member]
Equipment Finance Agreement [Member]
A financing agreement that allows for the purchase of equipment by the reporting entity.
Packaged Astaxanthin [Member]
Refers to information regarding packaged Astaxanthin.
Bulk Products [Member]
Refers to information regarding bulk products.
Property, Plant and Equipment, Type [Axis]
Packaged Products [Member]
Refers to information regarding the packaged products.
Property, Plant and Equipment, Type [Domain]
Business Description and Basis of Presentation [Text Block]
Deposit Account [Member]
Equity Award [Domain]
Bulk Spirulina [Member]
Refers to information regarding bulk Spirulina.
cyan_DebtAgreementMaximumBorrowingCapacity
Debt Agreement, Maximum Borrowing Capacity
Maximum borrowing capacity under a debt agreement on the amount that could be borrowed with a combination of, but not limited to, a line of credit and term loan.
Bulk Astaxanthin [Member]
Refers to information regarding bulk Astaxanthin.
Packaged Spirulina [Member]
Refers to information regarding packaged Spirulina.
Current assets:
Restricted Cash
Spirulina [Member]
Refers to information regarding Spirulina.
Astaxanthin [Member]
Refers to information regarding Astaxanthin.
Award Type [Axis]
Net (loss) income
NET INCOME (LOSS)
Net income (loss)
Cash and restricted cash at beginning of period
Cash and restricted cash at beginning of period
Cash at end of period
Restricted Stock Units (RSUs) [Member]
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
Net increase in cash
First Foundation Bank [Member]
Represents information about First Foundation Bank.
Restricted Stock [Member]
us-gaap_Liabilities
Total liabilities
us-gaap_NetCashProvidedByUsedInFinancingActivities
Net cash provided by (used in) financing activities
Commitments and contingencies
us-gaap_OperatingIncomeLoss
Income (loss) from operations
us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Contract with Customer, Liability, Revenue Recognized
Employee Stock Option [Member]
us-gaap_NetCashProvidedByUsedInOperatingActivities
Net cash (used in) provided by operating activities
Prepaid expenses and other current assets
us-gaap_NetCashProvidedByUsedInInvestingActivities
Net cash used in investing activities
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
us-gaap_GrossProfit
Gross profit
COST OF SALES
Counterparty Name [Axis]
Counterparty Name [Domain]
us-gaap_DueToRelatedPartiesCurrentAndNoncurrent
Due to Related Parties, Total
Commitments and Contingencies Disclosure [Text Block]
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Less accumulated depreciation and amortization
us-gaap_PropertyPlantAndEquipmentNet
Equipment and leasehold improvements, net
Equipment and leasehold improvements, net
us-gaap_CapitalLeasedAssetsGross
Capital Leased Assets, Gross, Total
Equipment and leasehold improvements, gross
Construction-in-progress
us-gaap_NetIncomeLossAttributableToParentDiluted
Net income - diluted
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Withholding on restricted stock unit vesting
us-gaap_CapitalLeasedAssetsNumberOfUnits
Capital Leased Assets, Number of Units
CASH FLOWS FROM INVESTING ACTIVITIES:
us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party
us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability
NET INCOME (LOSS) PER SHARE:
Earnings Per Share [Text Block]
NET SALES
Revenue
Proceeds from stock options exercised
Less: Issuance of short-term obligation
Issuance of Short Term Obligations
The value of the issuance of short term obligations.
cyan_RepaymentsOfShortTermContractualObligation
Payments on short term contract obligation
Amount of cash outflow for the payments on short term contractual obligations.
Related Party Transactions Disclosure [Text Block]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block]
Tabular disclosure of the components of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage.
us-gaap_IncreaseDecreaseInAccruedLiabilities
Accrued expenses
INCOME TAX EXPENSE (BENEFIT)
Equity Components [Axis]
Equity Component [Domain]
Long-term debt
Long-term Debt, Total
Capital lease obligations
Capital Lease Obligations, Total
us-gaap_IncreaseDecreaseInAccountsPayable
Accounts payable
The 2015 Loan Agreement [Member]
Represents the 2015 Loan Agreement with a lender.
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income(loss) before income taxes
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Domain]
us-gaap_OperatingExpenses
Total operating expenses
General and administrative
Cash
us-gaap_DeferredFinanceCostsNet
Less unamortized debt issuance costs
us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities
Other long-term liabilities
Disaggregation of Revenue [Table Text Block]
us-gaap_AllocatedShareBasedCompensationExpense
Allocated Share-based Compensation Expense, Total
us-gaap_RepaymentsOfLongTermDebt
Principal payments on long-term debt
Equipment [Member]
us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Payments on capitalized leases
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Amendment Flag
us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Ending Balance
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]
Use of Estimates, Policy [Policy Text Block]
us-gaap_DebtInstrumentPeriodicPayment
Debt Instrument, Periodic Payment, Total
New Accounting Pronouncements, Policy [Policy Text Block]
Reclassification, Policy [Policy Text Block]
Cellana Asset Purchase [Member]
Related to the Cellana asset purchase.
Short-term contract obligation
Short-term Non-bank Loans and Notes Payable
Short-term Obligation for Cellana Asset Purchase [Member]
Related to a short-term obligation for the Cellana asset purchase.
us-gaap_IncreaseDecreaseInContractWithCustomerLiability
Customer deposits
Common stock, shares outstanding (in shares)
Research Facility Owned by Cellana [Member]
Related to the research facility owned by Cellana.
Preferred outstanding, shares (in shares)
Redeemed in Two Monthly Payments [Member]
Related to debt redeemed in two monthly payments.
us-gaap_DebtInstrumentInterestRateDuringPeriod
Debt Instrument, Interest Rate During Period
Long-term debt, excluding current maturities
Current Fiscal Year End Date
Short-term Obligation for Cellana Asset Purchase 2 [Member]
Related to a short-term obligation for the Cellana asset purchase.
us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Debt Instrument, Basis Spread on Variable Rate
Net increase (decrease) in liabilities:
Proceeds from long-term debt, net of costs
us-gaap_DebtInstrumentInterestRateStatedPercentage
Debt Instrument, Interest Rate, Stated Percentage
cyan_DebtInstrumentHoldbackAmount
Debt Instrument, Hold-back, Amount
The amount of debt instrument hold-back associated with certain closing items.
Redeemed in Ten Monthly Payments [Member]
Related to debt redeemed in ten monthly payments.
us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Prepaid expenses and other assets
Document Fiscal Period Focus
Document Fiscal Year Focus
Consolidation, Policy [Policy Text Block]
Document Period End Date
Entity Emerging Growth Company
us-gaap_DebtInstrumentFaceAmount
Debt Instrument, Face Amount
Document Type
Customer Number 1 [Member]
Information pertaining to customer number 1 accounting for a percentage of accounts receivable.
us-gaap_AssetImpairmentCharges
Asset Impairment Charges, Total
Entity Small Business
Customer Number 2 [Member]
Information pertaining to customer number 2 accounting for a percentage of accounts receivable.
Document Information [Line Items]
Document Information [Table]
us-gaap_AreaOfRealEstateProperty
Area of Real Estate Property
Non-employee Directors [Member]
Represents the information pertaining to non-employee directors.
Entity Filer Category
Debt Instrument [Axis]
Entity Current Reporting Status
Debt Instrument, Name [Domain]
Name of Property [Axis]
Name of Property [Domain]
Employees [Member]
Refers to information regarding employees.
Variable Rate [Domain]
us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Shares - dilutive securities (in shares)
us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Shares outstanding - basic and diluted (in shares)
Prime Rate [Member]
us-gaap_SharePrice
Share Price
Schedule of Long-term Debt Instruments [Table Text Block]
us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Variable Rate [Axis]
Diluted (in shares)
Shares outstanding - diluted (in shares)
us-gaap_ConcentrationRiskPercentage1
Concentration Risk, Percentage
cyan_NonInventoriableFixedCosts
Non Inventoriable Fixed Costs
Represents the non-inventoriable fixed costs incurred during the period.
us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts receivable
cyan_InventoryAbnormalProductionCosts
Inventory Abnormal Production Costs
Represents the amount of abnormal production costs charged to cost of sales.
us-gaap_EarningsPerShareBasicAndDiluted
Earnings per share - basic and diluted (in dollars per share)
Entity Central Index Key
Entity Registrant Name
Term Loan Agreement, Maturing on August 14, 2032 [Member]
Represents the term loan agreement that are maturing on august 14, 2032.
Entity [Domain]
Customer Concentration Risk [Member]
Legal Entity [Axis]
Statement [Table]
Scenario [Axis]
Statement of Financial Position [Abstract]
Diluted (in dollars per share)
Earnings per share - diluted (in dollars per share)
Scenario, Unspecified [Domain]
cyan_DebtInstrumentReferenceRate
Debt Instrument Reference Rate
Represents the reference rate used to compute the variable rate on the debt instrument.
Basic (in shares)
Shares outstanding - basic (in shares)
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
cyan_DebtInstrumentPrepaymentPenaltyPercentage
Debt Instrument, Prepayment Penalty Percentage
Represents the prepayment penalty rate applicable, if any prepayment is made prior to the first anniversary.
cyan_NumberOfMajorCustomers
Number of Major Customers
Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc
cyan_DebtInstrumentPrepaymentPenaltyPercentageReductionDuringEachYear
Debt Instrument, Prepayment Penalty Percentage Reduction During Each Year
Represents the percentage of reduction in prepayment penalty rate each year.
cyan_DebtInstrumentOneTimeOriginationAndGuarantyFees
Debt Instrument One Time Origination and Guaranty Fees
Amount of one-time origination and guaranty fees on the debt instrument.
us-gaap_EffectiveIncomeTaxRateContinuingOperations
Effective Income Tax Rate Reconciliation, Percent, Total
cyan_DebtInstrumentAnnualRenewalFeePayablePercentage
Debt Instrument Annual Renewal Fee Payable Percentage
Represents the percentage of annual renewal fee payable on the debt instrument.
cyan_DebtInstrumentGuaranteedPortion
Debt Instrument Guaranteed Portion
Represents the guaranteed portion of the debt instrument.
Basic (in dollars per share)
Earnings per share - basic (in dollars per share)
Concentration Risk Type [Axis]
Net draws (payments) on line of credit
Concentration Risk Type [Domain]
cyan_DebtInstrumentPeriodicPaymentsNumber
Debt Instrument Periodic Payments Number
Represents the number of required periodic payments.
Statement of Cash Flows [Abstract]
Entity Common Stock, Shares Outstanding (in shares)
Income Statement [Abstract]
Sales Revenue, Net [Member]
Accounts Receivable [Member]
us-gaap_ProceedsFromIssuanceOfDebt
Proceeds from Issuance of Debt
Schedule of Accrued Liabilities [Table Text Block]
Long-term Debt [Text Block]
us-gaap_IncreaseDecreaseInInventories
Inventories
Trading Symbol
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Schedule of Share-based Compensation Shares Authorized Available and Outstanding by Plan [Table Text Block]
Tabular disclosure of shares authorized, available for future grant and outstanding under each stock-based compensation plan.
us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Line of Credit Facility, Remaining Borrowing Capacity
us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Exercised (in shares)
us-gaap_TableTextBlock
Notes Tables
us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity
Director [Member]
Related Party [Axis]
Related Party [Domain]
Granted (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
CASH FLOWS FROM FINANCING ACTIVITIES:
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
Forfeited (in shares)
us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Sales and marketing
Line of Credit Facility, Lender [Domain]
cyan_NumberOfShareholderApprovedSharebasedCompensationPlans
Number of Shareholder Approved Share-based Compensation Plans
Represents the number of shareholder approved plans under which shares were available for equity based awards.
Raw materials
Supplies
Lender Name [Axis]
us-gaap_LiabilitiesAndStockholdersEquity
Total liabilities and stockholders’ equity
Finished goods
Work in process
Accumulated deficit
Research and development
Debt Disclosure [Text Block]
Short-term Debt [Text Block]
Net (increase) decrease in assets:
us-gaap_StockholdersEquity
Total stockholders’ equity
Amortization of debt issue costs and other assets
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Inventory Disclosure [Text Block]
Subsequent Event [Member]
Schedule of Inventory, Current [Table Text Block]
Class of Stock [Axis]
Other long-term liabilities
us-gaap_RestrictedCashNoncurrent
Restricted cash
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]