STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Dec. 31, 2010 Stock options	Apr. 26, 2007 2007 Stock Incentive Plan
Stock-based compensation
Number of shares reserved for issuance under the plan				650,000
Fair value of options granted using the weighted average assumptions as of grant date
Risk-free interest rate (as a percent)	1.29%	2.36%	3.04%
Expected term	7 years	7 years	7 years
Expected stock price volatility (as a percent)	40.19%	61.41%	57.06%
Dividend yield (as a percent)	0.42%	0.46%	0.63%
Shares
Outstanding, beginning of year (in shares)	415,723
Granted (in shares)	78,500
Exercised (in shares)	(19,900)
Forfeited or expired (in shares)	(41,191)
Outstanding at end of year (in shares)	433,132	415,723
Exercisable at year end (in shares)	344,722
Fully vested and expected to vest (in shares)	424,330
Weighted Average Exercise Price
Outstanding, beginning of year (in dollars per share)	$ 13.00
Granted (in dollars per share)	$ 11.89
Exercised (in dollars per share)	$ 5.40
Forfeited or expired (in dollars per share)	$ 13.92
Outstanding at end of year (in dollars per share)	$ 13.06	$ 13.00
Exercisable at year end (in dollars per share)	$ 13.53
Fully vested and expected to vest (in dollars per share)	$ 13.09
Weighted Average Remaining Contractual Term
Outstanding at end of year	5 years 2 months 12 days
Exercisable at year end	4 years 1 month 6 days
Fully vested and expected to vest	5 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding at end of year (in dollars)	$ 959
Exercisable at year end (in dollars)	826
Fully vested and expected to vest (in dollars)	948
Information related to the 2007 stock incentive plan and the 2003 plan
Intrinsic value of options exercised	124
Cash received from option exercises	120
Tax benefit realized from option exercises	12
Weighted average fair value of options granted (in dollars per share)	$ 4.88	$ 5.16	$ 3.59
Additional disclosure
Total unrecognized compensation cost related to nonvested stock options granted	$ 385
Weighted-average period of expected recognition of the cost	2 years 9 months 18 days