Note 17 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Balance | $ (412) | $ (11,704) | $ (5,565) |
| Net change | (1,997) | 11,292 | (6,139) |
| Balance | (2,409) | (412) | (11,704) |
| Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | |||
| Balance | 774 | 1,316 | (857) |
| Net change | (2,005) | (542) | 2,173 |
| Balance | (1,231) | 774 | 1,316 |
| Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | |||
| Balance | (25) | 743 | |
| Net change | 25 | (768) | |
| Balance | (25) | ||
| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | |||
| Balance | (1,186) | (12,995) | (5,451) |
| Net change | 8 | 11,809 | (7,544) |
| Balance | $ (1,178) | $ (1,186) | $ (12,995) |