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Note 6 - Long-term Debt (Details) (USD $) | 1 Months Ended | 2 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Oct. 30, 2013
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Long-term Debt |  | $ 106,204,000 us-gaap_LongTermDebt | $ 106,204,000 us-gaap_LongTermDebt |  |
Long-term Debt, Term | 3 years |  |  |  |
Convertible Debt | 36,000,000 us-gaap_ConvertibleDebt |  |  |  |
Convertible Debt, Term | 5 years |  |  |  |
Working Capital | 17,500,000 cdzi_WorkingCapital | 14,900,000 cdzi_WorkingCapital | 14,900,000 cdzi_WorkingCapital |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.00%us-gaap_DebtInstrumentInterestRateStatedPercentage |  |  |  |
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ 8.05 us-gaap_DebtInstrumentConvertibleConversionPrice1 |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  | (1,055,000)us-gaap_GainsLossesOnExtinguishmentOfDebt |
Legal Fees | 1,200,000 us-gaap_LegalFees |  |  |  |
Stock Issued During Period, Value, Conversion of Convertible Securities |  | 314,000 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities | 311,000 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities |  |
Stock Issued During Period, Shares, Conversion of Convertible Securities (in Shares) |  | 39,037 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities |  |  |
Credit Agreement [Member] | Senior Secured Mortgage Loan [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember / us-gaap_StatementScenarioAxis = cdzi_CreditAgreementMember
Secured Debt |  |  |  |  | 10,000,000 us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember / us-gaap_StatementScenarioAxis = cdzi_CreditAgreementMember
Debt Instrument, Covenant Term, Maximum Percentage of Sales Can Be Retained |  |  |  |  | 50.00%cdzi_DebtInstrumentCovenantTermMaximumPercentageOfSalesCanBeRetained / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember / us-gaap_StatementScenarioAxis = cdzi_CreditAgreementMember
Debt Instrument Covenant Terms, First Sales, Amount Portion of Which Can Be Retained |  |  |  |  | 10,000,000 cdzi_DebtInstrumentCovenantTermsFirstSalesAmountPortionOfWhichCanBeRetained / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember / us-gaap_StatementScenarioAxis = cdzi_CreditAgreementMember
Debt Issuance Cost |  |  |  |  | 110,000 us-gaap_DebtIssuanceCosts / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember / us-gaap_StatementScenarioAxis = cdzi_CreditAgreementMember
Corporate Term Debt [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Long-term Debt | 66,000,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cdzi_CorporateTermDebtMember |  |  |  |
Senior Secured Mortgage Loan [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Mortgage Loans on Real Estate | 30,000,000 us-gaap_MortgageLoansOnRealEstate / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredMortgageLoanMember |  |  |  |
Convertible Bond [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Convertible Debt | 53,500,000 us-gaap_ConvertibleDebt / us-gaap_DebtInstrumentAxis = cdzi_ConvertibleBondMember |  |  |  |
Includes Legal Fees for Debt Refinancing [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Gains (Losses) on Extinguishment of Debt | 1,060,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DebtInstrumentAxis = cdzi_IncludesLegalFeesForDebtRefinancingMember |  |  |  |
MSD Credit [Member] |  |  |  |  |
Note 6 - Long-term Debt (Details) [Line Items] |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services (in Shares) |  |  |  |  | 700,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_CounterpartyNameAxis = cdzi_MSDCreditMember
Stock Issued During Period, Value, Issued for Services |  |  |  |  | $ 2,400,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_CounterpartyNameAxis = cdzi_MSDCreditMember

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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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