Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Debt - Summary of Future Maturities of Loans (Details)

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Note 7 - Debt - Summary of Future Maturities of Loans (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year $ 1,745  
Long-term Debt, Maturities, Repayments of Principal in Year Two 7,026  
Long-term Debt, Maturities, Repayments of Principal in Year Three 23,958  
Long-term Debt, Maturities, Repayments of Principal in Year Four 1,822  
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter 2,800  
Long-term Debt, Total 37,351 $ 33,745
Unamortized value of the debt issuance costs, 2019 (10)  
Unamortized value of the debt issuance costs, 2020 (39)  
Unamortized value of the debt issuance costs, 2021 (39)  
Unamortized value of the debt issuance costs, 2022  
Unamortized value of the debt issuance costs, 2023 and thereafter  
Unamortized value of the debt issuance costs, Total (88) (114)
Financing Agreement [Member]    
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 152  
Long-term Debt, Maturities, Repayments of Principal in Year Two 652  
Long-term Debt, Maturities, Repayments of Principal in Year Three 725  
Long-term Debt, Maturities, Repayments of Principal in Year Four 222  
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter  
Long-term Debt, Total 1,751
Equipment Line [Member]    
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 400  
Long-term Debt, Maturities, Repayments of Principal in Year Two 1,600  
Long-term Debt, Maturities, Repayments of Principal in Year Three 1,600  
Long-term Debt, Maturities, Repayments of Principal in Year Four 1,600  
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter 2,800  
Long-term Debt, Total 8,000 2,562
Term Loan A [Member]    
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 896  
Long-term Debt, Maturities, Repayments of Principal in Year Two 3,584  
Long-term Debt, Maturities, Repayments of Principal in Year Three 16,143  
Long-term Debt, Maturities, Repayments of Principal in Year Four  
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter  
Long-term Debt, Total 20,623 23,311
Term Loan C [Member]    
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 307  
Long-term Debt, Maturities, Repayments of Principal in Year Two 1,229  
Long-term Debt, Maturities, Repayments of Principal in Year Three 5,529  
Long-term Debt, Maturities, Repayments of Principal in Year Four  
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter  
Long-term Debt, Total $ 7,065 $ 7,986