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Note 1 - Overview and Summary of Significant Accounting Policies - Fair Value of Cash, Notes Receivable and Accounts Receivable (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Cash $ 1,110 $ 3,049
Notes receivable, net 4,668 3,500
Accounts receivable 50,171  
Total assets at fair value 55,949  
Term loans payable 729  
Line of credit 14,409  
Total liabilities at fair value 15,138  
Fair Value, Inputs, Level 1 [Member]    
Cash 1,110 3,049
Notes receivable, net 0 0
Accounts receivable 0 0
Total assets at fair value 1,110 3,049
Term loans payable 0 0
Line of credit 0 0
Total liabilities at fair value 0 0
Fair Value, Inputs, Level 2 [Member]    
Cash 0 0
Notes receivable, net 4,668 3,492
Accounts receivable 50,171 45,728
Total assets at fair value 54,839 49,220
Term loans payable 729 3,995
Line of credit 14,409 12,543
Total liabilities at fair value 15,138 16,538
Fair Value, Inputs, Level 3 [Member]    
Cash 0 0
Notes receivable, net 0 0
Accounts receivable 0 0
Total assets at fair value 0 0
Term loans payable 0 0
Line of credit 0 0
Total liabilities at fair value $ 0 0
Reported Value Measurement [Member]    
Cash   3,049
Notes receivable, net   3,492
Accounts receivable   45,728
Total assets at fair value   52,269
Term loans payable   3,995
Line of credit   12,543
Total liabilities at fair value   $ 16,538