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Note 7 - Term Loan and Line of Credit Agreements - Summary of Term Loan and Line of Credit Agreements (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Less current portion of long-term debt, gross $ (551) $ (536)
Less current portion debt issuance costs 19 19
Less current portion of long-term debt (532) (517)
Long-term debt, gross, net of current portion 11,184 11,464
Debt issuance costs, net of current portion (160) (170)
Long-term debt, net of current portion 11,024 11,294
Long-term debt, gross 11,735  
Term Loan Agreement [Member]    
Debt issuance costs (179) (189)
Long-term debt 11,556 11,811
Long-term debt, gross $ 11,735 $ 12,000