Annual report pursuant to Section 13 and 15(d)

Note 10 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals)

v3.6.0.2
Note 10 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Revolving Credit [Member]    
Effective interest rate 3.90% 4.00%
Term Loan [Member]    
Effective interest rate 3.80% 3.70%
Debt instrument, periodic payment, principal $ 102 $ 102
Promissory Note Dated August 2, 2013 [Member]    
Effective interest rate 2.99% 2.99%
Debt instrument, periodic payment, principal $ 125 $ 125
Capital Lease Obligations [Member]    
Effective interest rate 6.00% 6.00%