STOCK BASED COMPENSATION - Restricted Stock Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands |
3 Months Ended |
12 Months Ended |
|
|
|
Mar. 31, 2016 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Stock-based compensation |
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|
|
|
|
|
|
|
| Closing price of common stock (in dollars per share) |
$ 19.89
|
|
|
$ 19.89
|
|
$ 21.89
|
$ 19.89
|
$ 16.53
|
| Additional disclosures |
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|
|
|
|
|
|
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| Compensation expense |
|
|
$ 382
|
$ 315
|
$ 359
|
|
|
|
| Restricted stock |
|
|
|
|
|
|
|
|
| Stock-based compensation |
|
|
|
|
|
|
|
|
| Shares of common stock granted |
|
|
50,152
|
|
|
|
|
|
| Shares |
|
|
|
|
|
|
|
|
| Nonvested at the beginning of the period (in shares) |
101,631
|
|
101,631
|
|
|
|
|
|
| Granted (in shares) |
|
|
50,152
|
|
|
|
|
|
| Vested (in shares) |
|
|
(43,244)
|
|
|
|
|
|
| Forfeited (in shares) |
|
|
(4,220)
|
|
|
|
|
|
| Nonvested at the end of the period (in shares) |
|
|
104,319
|
101,631
|
|
|
|
|
| Weighted Average Grant Date Fair Value |
|
|
|
|
|
|
|
|
| Nonvested at the beginning of the period (in dollars per share) |
$ 16.57
|
|
$ 16.57
|
|
|
|
|
|
| Granted (in dollars per share) |
|
|
22.48
|
|
|
|
|
|
| Vested (in dollars per share) |
|
|
14.75
|
|
|
|
|
|
| Forfeited (in dollars per share) |
|
|
20.00
|
|
|
|
|
|
| Nonvested at the end of the period (in dollars per share) |
|
|
$ 20.03
|
$ 16.57
|
|
|
|
|
| Restricted stock | 2007 Stock Incentive Plan |
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|
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|
|
|
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| Additional disclosures |
|
|
|
|
|
|
|
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| Unrecognized compensation costs |
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|
$ 1,101
|
|
|
|
|
|
| Compensation expense |
|
|
$ 670
|
$ 584
|
$ 487
|
|
|
|
| Weighted-average period of expected recognition of the cost |
|
|
2 years 3 months 26 days
|
|
|
|
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|
| Restricted stock | Executive officer and other employees |
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|
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|
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| Stock-based compensation |
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|
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|
|
|
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| Vesting percentage of stock awards on third anniversary of grant date |
|
|
100.00%
|
|
|
|
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|
| Shares of common stock granted |
|
|
50,152
|
28,955
|
33,836
|
|
|
|
| Shares |
|
|
|
|
|
|
|
|
| Granted (in shares) |
|
|
50,152
|
28,955
|
33,836
|
|
|
|
| Performance units | Executive officers |
|
|
|
|
|
|
|
|
| Stock-based compensation |
|
|
|
|
|
|
|
|
| Shares of common stock granted |
16,152
|
16,205
|
|
|
|
|
|
|
| Shares |
|
|
|
|
|
|
|
|
| Granted (in shares) |
16,152
|
16,205
|
|
|
|
|
|
|
| Additional disclosures |
|
|
|
|
|
|
|
|
| Compensation expense |
|
|
$ 240
|
$ 79
|
|
|
|
|