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Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | Dec. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Factored Receivable Unpaid Principal Balance | $ 5,900,000 |  | $ 7,000,000 |
Factored Receivable, Customer Reserves | 2,100,000 |  | 1,400,000 |
Retained Earnings (Accumulated Deficit) | 74,426,000 |  | 71,808,000 |
Financing Receivable, Allowance for Credit Loss | 8,345,000 |  | 8,129,000 | $ 6,715,000
Deferred Tax Assets, Gross | 9,298,000 |  | 10,342,000 |
Deferred Tax Assets, Net | $ 4,512,000 |  | 5,480,000 |
Building and Building Improvements [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 25 years |  |  |
Building and Building Improvements [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 40 years |  |  |
Building [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 10 years |  |  |
Building [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 20 years |  |  |
Furniture and Fixtures [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 5 years |  |  |
Furniture and Fixtures [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 15 years |  |  |
Computer Equipment [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 2 years |  |  |
Computer Equipment [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 5 years |  |  |
Automobiles [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 4 years |  |  |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability |  | $ 417,000 |  |
Accounting Standards Update 2016-13 [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 8,129,000 | 8,129,000 |
Off-Balance-Sheet, Credit Loss, Liability |  | 0 |  |
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Retained Earnings (Accumulated Deficit) |  | (1,700,000) |  |
Financing Receivable, Allowance for Credit Loss |  | 1,907,000 | $ 1,907,000 |
Off-Balance-Sheet, Credit Loss, Liability |  | 417,000 |  |
Deferred Tax Assets, Gross |  | $ 604,000 |  |

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