Note 6 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2016 |
|
| Revolving Credit [Member] | ||
| Effective interest rate | 3.90% | 3.90% |
| Term Loan [Member] | ||
| Effective interest rate | 4.30% | 3.80% |
| Principal amount | $ 102 | $ 102 |
| X | ||||||||||
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of the required periodic payments applied to principal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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