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Note 16 - Related Party Transactions (Details Textual) - BSLF, L.L.C. [Member] - Funding Agreement [Member] - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2022 | Dec. 31, 2021
Percentage of Remaining Litigation Proceeds Up to Three Times the Actual Funding Amount |  | 50.00%
Percentage of Remaining Litigation Proceeds |  | 30.00%
Increase (Decrease) in Accounts Payable, Related Parties |  | $ (523,000)
Due from Related Parties, Total |  | 562,000
Selling, General and Administrative Expenses [Member] |  |
Legal Fees |  | 195,000
Accrued Expenses and Other Current Liabilities [Member] |  |
Accounts Payable, Related Parties |  | $ 156,000
Subsequent Event [Member] |  |
Legal Fees | $ 688,000 |
Maximum Discount on Legal Service | $ 300,000 |

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- Definition Represents the percentage of the remaining Litigation Proceeds, up to three times the Actual Funding Amount, to be added to any taxes paid by or imposed with request to claims and an amount, without reduction, set-off or counterclaim, equal to the amount actually paid pursuant to the agreement. + References No definition available. + Details
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