STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting period	3 years		3 years	3 years
Vesting rate	1.33333		1.33333	1.33333
Number of Shares [Roll Forward]
Outstanding at beginning (in shares)	211,500
Granted (in shares)	25,000				0
Exercised (in shares)	0
Forfeited or expired (in shares)	25,333
Outstanding at ending (in shares)	211,167		211,500
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning (in dollars per share)	$ 15.41
Granted (in dollars per share)	$ 14.26
Exercised (in dollars per share)	$ 0
Forfeited or expired (in dollars per share)	$ 15.50
Outstanding at ending (in dollars per share)	$ 15.26		$ 15.41
Information regarding options granted in current year [Abstract]
Risk-free interest rate (in hundredths)	0.81%
Expected dividend yield (in hundredths)	0.00%
Expected life in years	10 years
Expected volatility (in hundredths)	43.11%
Summary of options outstanding and exercisable [Abstract]
Weighted-Average Remaining Contractual Life	8 years 3 months 18 days
Weighted-Average Remaining Contractual Life	6 years 1 month 6 days
Total Shares Outstanding (in shares)	211,167		211,500
Total Weighted-Average Exercise Price (in dollars per share)	$ 15.26		$ 15.41
Total Shares Exercisable (in shares)	56,168
Total Weighted-Average Exercise Price (in dollars per share)	$ 23.08
Compensation expense	$ 82	$ 27
Remaining unrecognized compensation cost	$ 635
Remaining unrecognized compensation cost remaining vesting period	2 years 9 months 18 days
$10.79 - $12.44 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 10.79
To (in dollars per share)	$ 12.44
Shares Outstanding (in shares)	100,000
Weighted-Average Remaining Contractual Life	8 years 10 months 24 days
Weighted-Average Exercise Price (in dollars per share)	$ 11.49
Shares Exercisable (in shares)	6,667
Weighted-Average Remaining Contractual Life	8 years 10 months 24 days
Weighted-Average Exercise Price (in dollars per share)	$ 12.44
$13.13 - $14.97 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 13.13
To (in dollars per share)	$ 14.97
Shares Outstanding (in shares)	81,667
Weighted-Average Remaining Contractual Life	9 years 3 months 18 days
Weighted-Average Exercise Price (in dollars per share)	$ 13.80
Shares Exercisable (in shares)	20,001
Weighted-Average Remaining Contractual Life	9 years
Weighted-Average Exercise Price (in dollars per share)	$ 13.34
$28.30 - $31.83 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 28.30
To (in dollars per share)	$ 31.83
Shares Outstanding (in shares)	15,000
Weighted-Average Remaining Contractual Life	4 years 1 month 6 days
Weighted-Average Exercise Price (in dollars per share)	$ 30.24
Shares Exercisable (in shares)	15,000
Weighted-Average Remaining Contractual Life	4 years 1 month 6 days
Weighted-Average Exercise Price (in dollars per share)	$ 30.24
$32.90 - $34.95 [Member]
Summary of options outstanding and exercisable [Abstract]
From (in dollars per share)	$ 32.90
To (in dollars per share)	$ 34.95
Shares Outstanding (in shares)	14,500
Weighted-Average Remaining Contractual Life	2 years 10 months 24 days
Weighted-Average Exercise Price (in dollars per share)	$ 34.01
Shares Exercisable (in shares)	14,500
Weighted-Average Remaining Contractual Life	2 years 10 months 24 days
Weighted-Average Exercise Price (in dollars per share)	$ 34.01
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted related to SAR's (in shares)	6,000
Intrinsic value of SAR's (in dollars per share)	$ 0
Non Qualified Stock Option [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting 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 vesting 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)	175,000
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
Options vesting period	1 year