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Note 6 - Long-term Debt (Details) - Carrying Amount of the Company's Outstanding Debt (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013
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Note 6 - Long-term Debt (Details) - Carrying Amount of the Company's Outstanding Debt [Line Items] |  |  |
Interest accrues at 7% per annum |  |  | $ 36,000 us-gaap_ConvertibleDebt
Other loans | 28 us-gaap_OtherLoansPayable | 39 us-gaap_OtherLoansPayable |
Debt discount, net of accumulated accretion | (1,809)us-gaap_DebtInstrumentUnamortizedDiscount | (2,442)us-gaap_DebtInstrumentUnamortizedDiscount |
| 104,395 us-gaap_NotesAndLoansPayable | 96,428 us-gaap_NotesAndLoansPayable |
Less current portion | 11 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent | 11 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent |
| 104,384 us-gaap_LongTermDebtNoncurrent | 96,417 us-gaap_LongTermDebtNoncurrent |
Senior Secured Debt, Due March 5, 2016 [Member] |  |  |
Note 6 - Long-term Debt (Details) - Carrying Amount of the Company's Outstanding Debt [Line Items] |  |  |
Secured debt | 34,735 us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredDebtDueMarch52016Member | 32,055 us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredDebtDueMarch52016Member |
Senior Secured Debt, Due June 30, 2017 [Member] |  |  |
Note 6 - Long-term Debt (Details) - Carrying Amount of the Company's Outstanding Debt [Line Items] |  |  |
Secured debt | 10,986 us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredDebtDueJune302017Member | 10,138 us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = cdzi_SeniorSecuredDebtDueJune302017Member |
Convertible Note Instrument, Due March 5, 2018 [Member] |  |  |
Note 6 - Long-term Debt (Details) - Carrying Amount of the Company's Outstanding Debt [Line Items] |  |  |
Interest accrues at 7% per annum | $ 60,455 us-gaap_ConvertibleDebt / us-gaap_DebtInstrumentAxis = cdzi_ConvertibleNoteInstrumentDueMarch52018Member | $ 56,638 us-gaap_ConvertibleDebt / us-gaap_DebtInstrumentAxis = cdzi_ConvertibleNoteInstrumentDueMarch52018Member |

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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 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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- Definition Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. + 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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). 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 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer). + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 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) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Including the current and noncurrent portions, this element represents the carrying value of loans payable which were initially due after one year or beyond the operating cycle, if longer, and which are not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: 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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