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STOCK PLANS, Stock Options (Details) - Stock Options [Member]
3 Months Ended
Mar. 31, 2017
USD ($)
$ / shares
shares
Stock options, number of shares [Roll Forward]  
Balance, beginning of period (in shares) | shares 227,549
Granted (in shares) | shares 60,520
Expired (in shares) | shares (37,475)
Cancelled / Forfeited (in shares) | shares 0
Exercised (in shares) | shares 0
Balance, end of period (in shares) | shares 250,594
Exercisable (vested) at end of period (in shares) | shares 118,731
Stock options, weighted average exercise price [Roll Forward]  
Balance, beginning of period (in dollars per share) $ 8.12
Granted (in dollars per share) 11.54
Expired (in dollars per share) 16.31
Cancelled / Forfeited (in dollars per share) 0
Exercised (in dollars per share) 0
Balance, end of period (in dollars per share) 7.72
Exercisable (vested) at end of period (in dollars per share) $ 6.03
Stock options, additional disclosures [Abstract]  
Outstanding, aggregate intrinsic value | $ $ 978,246
Exercisable (vested), aggregate intrinsic value | $ $ 667,012
Outstanding, weighted average remaining contractual term 7 years 5 months 26 days
Exercisable (vested), weighted average remaining contractual term 5 years 8 months 16 days
Weighted average fair value of options granted (in dollars per share) $ 2.78
Unrecognized compensation related to non-vested stock options | $ $ 313,000
Unrecognized compensation cost, period for recognition 3 years 1 month 24 days
Recognized compensation cost | $ $ 24,000
Weighted average assumptions used in valuation [Abstract]  
Risk-free interest rate 1.89%
Expected dividend yield 0.00%
Expected life 5 years
Expected price volatility 22.88%