Represents the period over which obligation under the debt instrument fully amortizes.

No definition available.

Name:	cyan_DebtInstrumentAmortizationPeriod
Namespace Prefix:	cyan_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of annual renewal fee payable on the debt instrument.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentAnnualRenewalFeePayablePercentage
Namespace Prefix:	cyan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the guaranteed portion of the debt instrument.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentGuaranteedPortion
Namespace Prefix:	cyan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the period for which interest is payable.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentInterestPaymentPeriod
Namespace Prefix:	cyan_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of equipment loans with a lender providing credit for equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	cyan_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of one-time origination and guaranty fees on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	cyan_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of required periodic payments.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentPeriodicPaymentsNumber
Namespace Prefix:	cyan_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the prepayment penalty rate applicable, if any prepayment is made prior to the first anniversary.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentPrepaymentPenaltyPercentage
Namespace Prefix:	cyan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the percentage of reduction in prepayment penalty rate each year.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentPrepaymentPenaltyPercentageReductionDuringEachYear
Namespace Prefix:	cyan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the reference rate used to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	cyan_DebtInstrumentReferenceRate
Namespace Prefix:	cyan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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.

+ References

No definition available.

+ Details

Name:	cyan_LongTermDebtAndCapitalLeaseObligationsCurrentAndNoncurrent
Namespace Prefix:	cyan_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=cyan_TermLoanAgreementMaturingOnAugust142032Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cyan_TermLoanAgreementPromissoryNoteOneMember
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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cyan_EquipmentLoansWithJohnDeereMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
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- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cyan_ShortTermDebtAgreementWithPacificRimBankMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_CapitalLeaseObligationsMember
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Note 5 - Long-term Debt (Details Textual)		1 Months Ended		12 Months Ended
Note 5 - Long-term Debt (Details Textual)	Aug. 14, 2012 USD ($)	Mar. 31, 2015 USD ($)	Sep. 30, 2011 USD ($)	Mar. 31, 2015 USD ($)	Apr. 21, 2015 USD ($)	Mar. 01, 2015 USD ($)	Mar. 31, 2014 USD ($)
Term Loan Agreement, Maturing on August 14, 2032 [Member] \| Minimum [Member]
Debt Instrument, Interest Rate During Period				5.50%
Term Loan Agreement, Maturing on August 14, 2032 [Member]
Proceeds from Issuance of Debt	$ 5,500,000
Debt Instrument Interest Payment Period	1 year
Debt Instrument Amortization Period	19 years
Debt Instrument Reference Rate		3.25%		3.25%
Debt Instrument, Basis Spread on Variable Rate				1.00%
Debt Instrument Prepayment Penalty Percentage		5.00%		5.00%
Debt Instrument Prepayment Penalty Percentage Reduction During Each Year		1.00%		1.00%
Long-term Debt and Capital Lease Obligations, Current and Noncurrent		$ 5,236,000		$ 5,236,000			$ 5,414,000
Debt Instrument One Time Origination and Guaranty Fees				$ 214,500
Debt Instrument Annual Renewal Fee Payable Percentage		0.25%		0.25%
Debt Instrument Guaranteed Portion		80.00%		80.00%
Term Loan Agreement, Promissory Note One [Member]
Proceeds from Issuance of Debt	$ 2,250,000
Term Loan Agreement, Promissory Note Two [Member]
Proceeds from Issuance of Debt	$ 3,250,000
Equipment Loans with John Deere [Member] \| Maximum [Member]
Debt Instrument Periodic Payments Number				48
Equipment Loans with John Deere [Member]
Proceeds from Issuance of Debt				$ 103,000
Long-term Debt and Capital Lease Obligations, Current and Noncurrent		$ 16,000		$ 16,000			42,000
Debt Instrument Number of Equipment Loans				3
Debt Instrument, Interest Rate, Stated Percentage		0.00%		0.00%
Debt Instrument, Unamortized Discount		$ 600		$ 600			1,000
Term Loan Agreement with Nissan Motor Acceptance Corporation, Maturing on September 13, 2016 [Member]
Long-term Debt and Capital Lease Obligations, Current and Noncurrent			$ 23,000
Debt Instrument Periodic Payments Number			60
Debt Instrument, Interest Rate, Stated Percentage			0.00%
Debt Instrument, Unamortized Discount		200		200			300
Debt Instrument, Interest Rate, Effective Percentage			2.00%
Debt Instrument, Face Amount		7,000		7,000			12,000
Short Term Debt Agreement with Pacific Rim Bank [Member] \| Subsequent Event [Member]
Debt Instrument, Interest Rate, Stated Percentage					6.00%
Debt Instrument, Face Amount					$ 500,000
Capital Lease Obligations [Member]
Long-term Debt and Capital Lease Obligations, Current and Noncurrent		$ 84,000		$ 84,000		$ 86,000	0
Debt Instrument Periodic Payments Number		36
Debt Instrument, Interest Rate, Stated Percentage		6.50%		6.50%
Long-term Debt and Capital Lease Obligations, Current and Noncurrent		$ 5,343,000		$ 5,343,000			$ 5,467,000