STOCK-BASED COMPENSATION Outstanding Stock Options (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding (in shares)	1,272,672	2,332,889
Options Outstanding, Intrinsic value	$ 2,680,883
Options Vested (in shares)	1,227,362
Options vested, Intrinsic Value	$ 2,680,883
$5.00 – $5.50
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 5.00
Exercise price, upper limit (in dollars per share)	$ 5.50
Options Outstanding (in shares)	272,450
Options Outstanding, Intrinsic value	$ 1,539,448
Options Vested (in shares)	272,450
Options vested, Intrinsic Value	$ 1,539,448
Weighted Average Remaining Life	2 years 10 months 6 days
$6.90 – $7.66
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 6.90
Exercise price, upper limit (in dollars per share)	$ 7.66
Options Outstanding (in shares)	204,261
Options Outstanding, Intrinsic value	$ 736,580
Options Vested (in shares)	204,261
Options vested, Intrinsic Value	$ 736,580
Weighted Average Remaining Life	5 years 3 months 25 days
$7.96 – $8.14
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 7.96
Exercise price, upper limit (in dollars per share)	$ 8.14
Options Outstanding (in shares)	67,700
Options Outstanding, Intrinsic value	$ 207,580
Options Vested (in shares)	67,700
Options vested, Intrinsic Value	$ 207,580
Weighted Average Remaining Life	5 years 1 month 12 days
$9.17 – $10.98
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 9.17
Exercise price, upper limit (in dollars per share)	$ 10.98
Options Outstanding (in shares)	142,263
Options Outstanding, Intrinsic value	$ 197,275
Options Vested (in shares)	142,263
Options vested, Intrinsic Value	$ 197,275
Weighted Average Remaining Life	4 years 3 months 18 days
$11.18 - $11.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 11.18
Exercise price, upper limit (in dollars per share)	$ 11.99
Options Outstanding (in shares)	154,025
Options Outstanding, Intrinsic value	$ 0
Options Vested (in shares)	153,900
Options vested, Intrinsic Value	$ 0
Weighted Average Remaining Life	5 years 10 months 9 days
$12.28 - $12.97
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 12.28
Exercise price, upper limit (in dollars per share)	$ 12.97
Options Outstanding (in shares)	111,849
Options Outstanding, Intrinsic value	$ 0
Options Vested (in shares)	111,849
Options vested, Intrinsic Value	$ 0
Weighted Average Remaining Life	6 years 15 days
$13.00 - $13.48
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 13.00
Exercise price, upper limit (in dollars per share)	$ 13.48
Options Outstanding (in shares)	58,500
Options Outstanding, Intrinsic value	$ 0
Options Vested (in shares)	57,876
Options vested, Intrinsic Value	$ 0
Weighted Average Remaining Life	6 years 4 months 9 days
$14.03 - $14.88
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 14.03
Exercise price, upper limit (in dollars per share)	$ 14.88
Options Outstanding (in shares)	82,124
Options Outstanding, Intrinsic value	$ 0
Options Vested (in shares)	82,124
Options vested, Intrinsic Value	$ 0
Weighted Average Remaining Life	4 years 6 months 25 days
$16.08 - $17.11
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 16.08
Exercise price, upper limit (in dollars per share)	$ 17.71
Options Outstanding (in shares)	179,500
Options Outstanding, Intrinsic value	$ 0
Options Vested (in shares)	134,939
Options vested, Intrinsic Value	$ 0
Weighted Average Remaining Life	7 years 4 months 6 days