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Note 8 - Debt and Credit Agreements (Details Textual) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Aug. 04, 2022
Long-Term Debt, Current Maturities $ 19,762 $ 1,170  
Development Corporation of Abilene Loan [Member]      
Notes Payable 1,401 1,094  
Notes Payable, Other Payables [Member]      
Long-Term Debt, Current Maturities $ 161 $ 88  
Debt Instrument, Interest Rate, Stated Percentage 6.00%    
Notes Payable, Other Payables [Member] | Minimum [Member]      
Debt Instrument, Periodic Payment $ 3    
Notes Payable, Other Payables [Member] | Maximum [Member]      
Debt Instrument, Periodic Payment 15    
The 2022 Credit Facility [Member]      
Line of Credit, Current 24,923    
Line of Credit Facility, Remaining Borrowing Capacity 11,906    
Revolving Credit Facility [Member]      
Line of Credit, Current $ 6,405    
Debt Instrument, Interest Rate, Effective Percentage 7.82% 6.55%  
Revolving Credit Facility [Member] | The 2022 Credit Facility [Member]      
Line of Credit Facility, Maximum Borrowing Capacity     $ 35,000
Line of Credit Facility, Optional Increase in Maximum Borrowing Capacity     10,000
Debt Instrument, Face Amount     $ 7,578
Debt Issuance Costs, Net $ 368    
Accumulated Amortization, Debt Issuance Costs 112    
Line of Credit, Current $ 18,518    
Senior Secured Term Loan [Member]      
Debt Instrument, Interest Rate, Effective Percentage 7.82% 6.80%