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Note 8 - Long-term Debt - Long-term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Long-term debt, gross $ 94,375 $ 156,125
Payments due within one year included in current liabilities 4,688 3,750
Debt issuance costs 898 808
Long-term debt less current maturities 88,789 151,567
PNC Bank [Member] | Revolving Credit Facility [Member]    
Long-term debt, gross 25,000 83,000
BB&T [Member] | Term Loan Maturing May 2020 [Member]    
Long-term debt, gross $ 69,375 $ 73,125