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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
Dec. 31, 2019
Dec. 31, 2018
long-term debt, gross $ 23,000  
Less current portion of long-term debt, gross 1,057 $ 597
Less current portion debt issuance costs (42) (19)
Less current portion of long-term debt 1,015 578
Long-term debt, gross, net of current portion 21,943 10,301
Debt issuance costs, net of current portion (373) (134)
Long-term debt, net of current portion 21,570 10,167
New Term Loan Agreement [Member]    
long-term debt, gross 23,000  
Debt issuance costs (415)  
Long-term debt $ 22,585  
Term Loan Agreement [Member]    
long-term debt, gross   10,898
Debt issuance costs   (153)
Long-term debt   $ 10,745