Note 13 - Stock Compensation Plans/Subsequent Event - Stock Compensation Plans (Details) - Restricted Stock [Member] - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Unvested unrestricted stock awards (in shares) | 112,958 | 45,750 | |
| Unvested unrestricted stock awards, Weighted average grant date fair value (in dollars per share) | $ 5.99 | $ 6.70 | |
| Awards granted (in shares) | 67,600 | 84,900 | 45,750 |
| Awards granted, Weighted average grant date fair value (in dollars per share) | $ 5.53 | $ 5.75 | $ 6.70 |
| Forfeitures (in shares) | (23,836) | (1,166) | |
| Forfeitures, Weighted average grant date fair value (in dollars per share) | $ 5.69 | $ 6.70 | |
| Vestings (in shares) | (52,848) | (16,526) | |
| Vestings, Weighted average grant date fair value (in dollars per share) | $ 6.02 | $ 6.70 | |
| Unvested unrestricted stock awards (in shares) | 103,874 | 112,958 | 45,750 |
| Unvested unrestricted stock awards, Weighted average grant date fair value (in dollars per share) | $ 5.74 | $ 5.99 | $ 6.70 |