Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals)

v3.7.0.1
Note 6 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Revolving Credit [Member]    
Effective interest rate 4.40% 4.40%
Term Loan [Member]    
Effective interest rate 4.40% 4.40%
Principal amount $ 102 $ 102