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Note 9 - Debt and Credit Agreements (Details Textual)
$ in Thousands
3 Months Ended 12 Months Ended 18 Months Ended 23 Months Ended
Aug. 04, 2022
USD ($)
Oct. 29, 2020
May 13, 2020
USD ($)
Apr. 15, 2020
USD ($)
Feb. 25, 2019
USD ($)
Oct. 26, 2016
Jun. 30, 2021
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jan. 31, 2024
Jun. 30, 2024
Feb. 28, 2022
USD ($)
Nov. 08, 2021
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2016
USD ($)
Line of Credit, Current                       $ 7,217              
Long-term Debt, Total                       8,311              
Long-Term Debt, Current Maturities, Total                       1,170 $ 6,650            
Gain (Loss) on Extinguishment of Debt, Total                       0 9,151            
Development Corporation of Abilene Loan [Member]                                      
Long-term Debt, Total                                     $ 570
Debt Instrument, Decrease, Forgiveness                       0 114            
Notes Payable, Total                       1,094 363            
Notes Payable, Other Payables [Member]                                      
Long-term Debt, Total                       1,094 477            
Long-Term Debt, Current Maturities, Total                       $ 88 $ 186            
Debt Instrument, Interest Rate, Stated Percentage                       4.00%              
Paycheck Protection Program CARES Act [Member]                                      
Proceeds from Issuance of Long-term Debt, Total       $ 9,530                              
Repayments of Long-term Debt, Total     $ 379                                
Gain (Loss) on Extinguishment of Debt, Total             $ 9,151                        
The 2022 Credit Facility [Member]                                      
Debt Instrument, Term (Year) 84 years                                    
The 2022 Credit Facility [Member] | Forecast [Member]                                      
Debt Instrument, Covenant, Fixed Charge Coverage Ratio                           1.0 1.1        
Debt Instrument, Covenant, Minimum EBITDA               $ 9,929,000 $ 5,876,000 $ 3,661,000 $ 1,921,000                
Interest Rate Swap [Member]                                      
Derivative Liability, Notional Amount                                   $ 6,000  
Derivative, Fixed Interest Rate                                   2.13%  
Minimum [Member] | Notes Payable, Other Payables [Member]                                      
Debt Instrument, Periodic Payment, Total                       $ 3              
Maximum [Member] | Notes Payable, Other Payables [Member]                                      
Debt Instrument, Periodic Payment, Total                       16              
Revolving Credit Facility [Member]                                      
Debt Instrument, Term (Year)           3 years                          
Long Term Debt Extended Term (Year)         3 years                            
Line of Credit Facility, Maximum Borrowing Capacity         $ 35,000                     $ 30,000      
Reserve to Revolving Loan Availability                                 $ 5,000    
Line of Credit, Current                       0              
Line of Credit Facility, Remaining Borrowing Capacity                       $ 27,351              
Debt Instrument, Interest Rate, Effective Percentage                       6.55% 4.00%            
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, Gross $ 470                                    
Letter of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]                                      
Debt Instrument, Basis Spread on Variable Rate   2.25%                                  
Letter of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]                                      
Debt Instrument, Basis Spread on Variable Rate   2.75%                                  
Letter of Credit [Member] | Base Rate [Member] | Minimum [Member]                                      
Debt Instrument, Basis Spread on Variable Rate   0.00%                                  
Letter of Credit [Member] | Base Rate [Member] | Maximum [Member]                                      
Debt Instrument, Basis Spread on Variable Rate   0.75%                                  
Senior Secured Term Loan [Member]                                      
Debt Instrument, Interest Rate, Effective Percentage                       6.80%