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Note 3 - Debt (Details Textual) - Amended Credit Agreement [Member]
$ in Thousands
Dec. 13, 2021
USD ($)
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
USD ($)
Debt Issuance Costs, Gross       $ 187
Term Loan Facility [Member] | Long-term Debt, Current Maturities [Member]        
Secured Debt, Total       2,000
Revolving Credit Facility [Member]        
Secured Debt, Total       8,167
Long-Term Line of Credit, Total       $ 13,330
Maximum Consolidated Senior Leverage Ratio       3.5
Revolving Credit Facility [Member] | Minimum [Member]        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.15%      
Revolving Credit Facility [Member] | Maximum [Member]        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 0.10%      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Minimum [Member]        
Debt Instrument, Basis Spread on Variable Rate 1.85%      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Maximum [Member]        
Debt Instrument, Basis Spread on Variable Rate 2.15%      
Revolving Credit Facility [Member] | Forecast [Member]        
Maximum Consolidated Senior Leverage Ratio   3.0 3.5  
KeyBank [Member] | Term Loan Facility [Member]        
Debt Instrument, Term 5 years      
Debt Instrument, Face Amount $ 10,000      
KeyBank [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity 30,000      
Line Of Credit Facility Maximum Borrowing Capacity Contingent On Bank Approval $ 50,000