STOCK-BASED COMPENSATION (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercise period	3 years		3 years	3 years
Vesting rate	1.33333		1.33333	1.3333
Number of Shares [Roll Forward]
Outstanding at beginning (in shares)	211,500
Granted (in shares)	98,000				0
Exercised (in shares)	(6,667)
Forfeited or expired (in shares)	(25,333)
Outstanding at ending (in shares)	277,500		211,500
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning (in dollars per share)	$ 15.41
Granted (in dollars per share)	$ 16.99
Exercised (in dollars per share)	$ 13.44
Forfeited or expired (in dollars per share)	$ 15.50
Outstanding at ending (in dollars per share)	$ 16.01		$ 15.41
Information regarding options granted in current year [Abstract]
Risk-free interest rate (in hundredths)	1.19%
Expected dividend yield (in hundredths)	0.00%
Expected life in years	10 years
Expected volatility (in hundredths)	43.00%
Summary of options outstanding and exercisable [Abstract]
Weighted-Average Remaining Contractual Life	8 years 3 months 18 days
Total Shares Outstanding (in shares)	277,500		211,500
Total Weighted-Average Remaining Contractual Life	6 years
Total Weighted-Average Exercise Price (in dollars per share)	$ 16.01		$ 15.41
Total Shares Exercisable (in shares)	62,836
Total Weighted-Average Exercise Price (in dollars per share)	$ 21.92
Compensation expense	$ 367,000	$ 304,000
Remaining unrecognized compensation cost	1,000,000
Remaining unrecognized compensation cost remaining vesting period	2 years 7 months 6 days
$10.00 - $14.00 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 10.00
To (in dollars per share)	$ 14.00
Shares Outstanding (in shares)	140,000
Weighted-Average Remaining Contractual Life	8 years 4 months 24 days
Weighted-Average Exercise Price (in dollars per share)	$ 12.01
Shares Exercisable (in shares)	30,002
Weighted-Average Remaining Contractual Life	8 years 6 months
Weighted-Average Exercise Price (in dollars per share)	$ 12.68
$14.01 - $20.00 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 14.01
To (in dollars per share)	$ 20.00
Shares Outstanding (in shares)	108,000
Weighted-Average Remaining Contractual Life	9 years 8 months 12 days
Weighted-Average Exercise Price (in dollars per share)	$ 16.80
Shares Exercisable (in shares)	3,334
Weighted-Average Remaining Contractual Life	9 years
Weighted-Average Exercise Price (in dollars per share)	$ 14.97
$20.01 - $30.00 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 20.10
To (in dollars per share)	$ 30.00
Shares Outstanding (in shares)	5,000
Weighted-Average Remaining Contractual Life	5 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 28.30
Shares Exercisable (in shares)	5,000
Weighted-Average Remaining Contractual Life	5 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 28.30
$30.01 - $40.00 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 30.01
To (in dollars per share)	$ 40.00
Shares Outstanding (in shares)	24,500
Weighted-Average Remaining Contractual Life	2 years 7 months 6 days
Weighted-Average Exercise Price (in dollars per share)	$ 32.87
Shares Exercisable (in shares)	24,500
Weighted-Average Remaining Contractual Life	2 years 7 months 6 days
Weighted-Average Exercise Price (in dollars per share)	$ 32.87
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding related to SAR's (in shares)	6,000
Intrinsic value of SAR's (in dollars per share)	$ 0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	15,000
Total cash received from option exercises	$ 92,000
Non Qualified Stock Option [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercise period				3 years
Vesting rate				1.33333
Number of Shares [Roll Forward]
Granted (in shares)				30,000
Weighted Average Exercise Price [Roll Forward]
Granted (in dollars per share)				$ 10.79
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercise period	10 years
2009 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company's common stock reserved for issuance (in shares)	500,000
Common stock granted (in shares)	248,000
1999 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company's common stock reserved for issuance (in shares)	0