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Note 9 - Term Loans and Line of Credit Agreements - Summary of Term Loan and Line of Credit Agreements (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Long-term debt, gross $ 20,256  
Less current portion of long-term debt, gross 1,197 $ 1,168
Less current portion debt issuance costs (42) (42)
Current portion of long-term debt 1,155 1,126
Long-term debt, gross, net of current portion 19,059 19,665
Debt issuance costs, net of current portion (268) (289)
Long-term debt 18,791 19,376
Term Loan Agreement [Member]    
Long-term debt, gross 20,256 20,833
Debt issuance costs (310) (331)
Term Loan Agreement $ 19,946 $ 20,502