Note 19 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Deferred Costs, Leasing, Net, Current | $ 91 | $ 72 | |
| Operating Leases, Rent Expense, Net | 225 | $ 225 | $ 204 |
| Alloy Purchase Commitments [Member] | |||
| Long-term Purchase Commitment, Amount | $ 689 | ||