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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
Mar. 31, 2020
Dec. 31, 2019
Long-term debt, gross $ 22,741  
Less current portion of long-term debt, gross 1,070 $ 1,057
Less current portion debt issuance costs (42) (42)
Less current portion of long-term debt 1,028 1,015
Long-term debt, gross, net of current portion 21,671 21,943
Debt issuance costs, net of current portion (363) (373)
Long-term debt, net of current portion 21,308 21,570
Term Loan Agreement [Member]    
Long-term debt, gross 22,741 23,000
Debt issuance costs (405) (415)
Long-term debt $ 22,336 $ 22,585