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v3.21.2

Note 2 - Long-term Debt (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 02, 2021 | Jul. 01, 2021 | Jun. 29, 2021 | May 18, 2021 | May 10, 2021 | Mar. 24, 2020 | Mar. 23, 2020 | Sep. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Mar. 24, 2021 | Mar. 23, 2021
Fair Value Adjustment of Warrants |  |  |  |  |  |  |  |  | $ (573) | $ (259) |  |  |
Debt Instrument, Extension Option Fee Percentage |  |  |  | 1.00% |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  |  | 8.857% | 8.857% |  |  |
Deposits, Segregated Account, Pre-fund Eight Quarterly Dividend Payments | $ 10,200 |  |  |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage | 8.875% | 8.875% | 8.875% |  |  |  |  | 8.875% | 8.875% |  | 8.875% |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  | $ 25,000.00 |  |  |  |  |  |  |  |  |  |
Depository Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ 25.00 | $ 25.00 | $ 25.00 |  |  |  |  |  |  |  |  |  |
New Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.00% |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount, Total | $ 2,900 |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Repayment Prior to Six-months of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repayment Fee Percentage | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Repayment After Six-months of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repayment Fee Percentage | 2.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Repayment After Eighteen-months of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repayment Fee Percentage | 4.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Repayment After Thirty-months of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repayment Fee Percentage | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Issuance Within Six-months of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Prepay Amount, Percentage of the Cash Proceeds Received | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Issuance After Six-months and Before Ony Year of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Prepay Amount, Percentage of the Cash Proceeds Received | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Issuance After One Year of the Closing Date [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Prepay Amount, Percentage of the Cash Proceeds Received | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Before 12-months Anniversary of the Closing of the Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Principal Exchanged into Depositary Receipts | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Between 12-months and 18-months Anniversary of the Closing of the Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Principal Exchanged into Depositary Receipts | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | Between 18-months and 24-months Anniversary of the Closing of the Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Principal Exchanged into Depositary Receipts | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
New Loan [Member] | After 24-months Anniversary of the Closing of the Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Principal Exchanged into Depositary Receipts | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Affiliate of BRS [Member] | Senior Secured Debt Issued By Cadiz [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Notes Receivable | $ 77,500 |  |  |  |  |  |  |  |  |  |  |  |
Lenders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Payment of Debt Extension Fees (in shares) |  |  |  | 64,356 |  |  |  |  |  |  |  |  |
Apollo [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares Debt Reassignment Fee (in shares) | 299,210 |  |  |  |  |  |  |  |  |  |  |  |
Additional Paid-in Capital [Member] | Reclassification of Debt Issuance Costs to Additional Paid In Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Current Period Reclassification Adjustment |  |  |  |  |  | $ 1,900 | $ 1,300 |  |  |  |  |  |
2017 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  | 362,500 |  |  |  |  |  | 362,500 |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  | $ 0.01 | $ 0.01 | $ 6.75 |  |  |  |  | $ 0.01 | $ 6.75
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  | 362,500 |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Exercise of Warrants (in shares) |  |  |  |  | 362,500 |  |  |  |  |  |  |  |
Warrants Issued to Lenders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Issued During Period (in shares) | 2 |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding |  |  |  |  |  |  |  | $ 1,900 | $ 1,900 |  |  |  |
A Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 17.38 |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | 500,000 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Closing Price Per Share of Common Stock | 120.00% |  |  |  |  |  |  |  |  |  |  |  |
B Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 21.72 |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | 500,000 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Closing Price Per Share of Common Stock | 150.00% |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) | 180 years |  |  |  |  |  |  |  |  |  |  |  |

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