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EMPLOYEE STOCK COMPENSATION - Summary of Stock Options Outstanding (Detail) | 12 Months Ended
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Dec. 31, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number of Shares (in shares) | shares | 960,879
Options Outstanding, Intrinsic Value | $ | $ 1,723,207
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 12.86
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 6 years 10 months 27 days
Options Exercisable, Number of Shares (in shares) | shares | 394,613
Options Exercisable, Intrinsic Value | $ | $ 795,962
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 12.70
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 6 years 1 month 22 days
$10.89 to $11.87 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise price (in usd per share) | $ 10.89
Upper range of exercise price (in usd per share) | $ 11.87
Options Outstanding, Number of Shares (in shares) | shares | 177,683
Options Outstanding, Intrinsic Value | $ | $ 583,747
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 11.33
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 6 years 5 months 16 days
Options Exercisable, Number of Shares (in shares) | shares | 125,529
Options Exercisable, Intrinsic Value | $ | $ 404,201
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 11.40
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 5 years 11 months 24 days
$11.87 to $12.85 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise price (in usd per share) | $ 11.87
Upper range of exercise price (in usd per share) | $ 12.85
Options Outstanding, Number of Shares (in shares) | shares | 285,000
Options Outstanding, Intrinsic Value | $ | $ 675,700
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 12.25
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 7 years 11 months 28 days
Options Exercisable, Number of Shares (in shares) | shares | 128,327
Options Exercisable, Intrinsic Value | $ | $ 305,752
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 12.24
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 7 years 5 months 26 days
$12.85 to $13.83 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise price (in usd per share) | $ 12.85
Upper range of exercise price (in usd per share) | $ 13.83
Options Outstanding, Number of Shares (in shares) | shares | 298,696
Options Outstanding, Intrinsic Value | $ | $ 402,016
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 13.27
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 8 years 2 months 5 days
Options Exercisable, Number of Shares (in shares) | shares | 40,000
Options Exercisable, Intrinsic Value | $ | $ 60,400
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 13.11
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 7 years 4 months 30 days
$13.83 to $14.81 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise price (in usd per share) | $ 13.83
Upper range of exercise price (in usd per share) | $ 14.81
Options Outstanding, Number of Shares (in shares) | shares | 166,622
Options Outstanding, Intrinsic Value | $ | $ 61,744
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 14.25
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 3 years 6 months 7 days
Options Exercisable, Number of Shares (in shares) | shares | 67,879
Options Exercisable, Intrinsic Value | $ | $ 25,609
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 14.24
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 3 years 5 months 16 days
$14.81 to $15.81 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise price (in usd per share) | $ 14.81
Upper range of exercise price (in usd per share) | $ 15.81
Options Outstanding, Number of Shares (in shares) | shares | 32,878
Options Outstanding, Intrinsic Value | $ | $ 0
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) | $ 15.81
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) | 5 years 5 months 30 days
Options Exercisable, Number of Shares (in shares) | shares | 32,878
Options Exercisable, Intrinsic Value | $ | $ 0
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) | $ 15.81
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) | 5 years 5 months 30 days

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