COMPENSATION PLANS (Details) (USD $)	0 Months Ended						12 Months Ended					12 Months Ended		12 Months Ended			12 Months Ended		12 Months Ended
	May 24, 2012	Mar. 12, 2012	Feb. 16, 2012	Aug. 18, 2011	May 26, 2011	Mar. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Stock Options [Member] Exercise price - $0.75 [Member]	Dec. 31, 2012 Stock Options [Member] Exercise price - $0.75 [Member]	Dec. 31, 2012 Stock Options [Member] Exercise price - $1.75 [Member]	Dec. 31, 2012 Stock Options [Member] Exercise price - $1.75 [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2011 Restricted Stock [Member]	Dec. 31, 2012 2009 Omnibus Incentive Plan [Member]	Dec. 31, 2012 2009 Omnibus Incentive Plan [Member] Stock Options [Member]	May 21, 2009 1987 Plan [Member]	Dec. 31, 2012 Bonus Plan [Member]	Dec. 31, 2011 Bonus Plan [Member]	Dec. 31, 2010 Bonus Plan [Member]	Dec. 31, 2012 Profit-Sharing Plan [Member]
Deferred compensation plans [Line Items]
Period for benefits under deferred compensation arrangements							10 years
Assumed discount rate (in hundredths)							7.00%	7.00%
Compensation expense							$ 194,000	$ 222,000	$ 226,000										$ 4,100,000	$ 2,400,000	$ 1,400,000
Recognized gains on the cash surrender value of life insurance contracts							88,000	21,000	139,000
Probationary period for eligible employees																						90 days
Eligible employee minimum age requirement																						18 years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense							800,000	300,000	200,000
Number of authorized shares for future grants (in shares)																450,441
Percentage of option awards granted and immediately vested on grant date (in hundredths)																		10.00%
Period of required continuous employment																	3 years
Contractual term																	10 years
Total Options, Shares [Rollforward]
Outstanding, beginning of year (in shares)							452,000	497,000	585,000
Granted during the year (in shares)							0	0	0
Forfeited during the year (in shares)							0	(22,000)	(88,000)
Exercised during the year (in shares)							(362,250)	(22,750)	0
Outstanding, end of year (in shares)							90,000	452,000	497,000
Total Options, weighted average exercise price [Roll Forward]
Outstanding, beginning of year (in dollars per share)							$ 1.27	$ 1.61	$ 2.67
Granted during the year (in dollars per share)							$ 0	$ 0	$ 0
Forfeited during the year (in dollars per share)							$ 0	$ 9.36	$ 8.70
Exercised during the year (in dollars per share)							$ 1.20	$ 0.90	$ 0
Outstanding, end of year (in dollars per share)							$ 1.54	$ 1.27	$ 1.61
Vested Options [Abstract]
Vested during the year (in shares)							141,000	166,000	124,000
Vested during the year, weighted average exercise price (in dollars per share)							$ 1.25	$ 1.25	$ 1.25
Eligible, end of year for exercise (in shares)							90,000	317,000	187,000
Eligible, end of year for exercise, weighted average exercise price (in dollars per share)							$ 1.54	$ 1.27	$ 2.20
Aggregate intrinsic value of total options outstanding							1,265,000	1,282,000	310,000
Aggregate intrinsic value of options exercisable							1,265,000	897,000	108,000
Weighted average fair value of options granted during the year (in dollars per share)
Company's closing stock price (in dollars per share)							$ 15.56
Aggregate intrinsic value of options exercised							4,800,000	28,000
Cash received and tax benefit realized from the exercise of stock options							436,000	21,000
Stock option vested percentage (in hundredths)							100.00%
Stock options expected to vest in 2012 (in shares)							0
Total unrecognized compensation costs							1,100,000
Weighted-average period for recognition of unrecognized compensation cost							14 months
Fair value of stock options vested							200,000	200,000	200,000
Shares [Roll Forward]
Unvested, Beginning balance (in shares)														178,000	154,000
Granted during the year (in shares)														162,000	165,000
Vested during the year (in shares)														(166,000)	(141,000)
Unvested, Ending balance (in shares)														174,000	178,000
Weighted Average Grant Date Fair Value [Rollforward]
Unvested, Beginning balance (in dollars per share)														$ 2.21	$ 2.23
Granted during the year (in dollars per share)														$ 8.98	$ 2.06
Vested during the year (in dollars per share)														$ 4.74	$ 2.06
Unvested, Ending balance (in dollars per share)														$ 6.12	$ 2.21
Shares approved for grant by the Board of Directors (in shares)	24,500	122,800	15,000	3,500	21,000	140,000
Total fair value of restricted stock vested														$ 800,000	$ 300,000
Options outstanding and exercisable [Abstract]
Exercise price (in dollars per share)										$ 0.75		$ 1.75
Options Outstanding, Shares Outstanding (in shares)											19,000		71,000
Options Outstanding, Weighted Average Remaining Contractual Life (years)										6 years 4 months 24 days		6 years 4 months 24 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)										$ 0.75		$ 1.75
Options Exercisable, Share Exercisable (in shares)										19,000		71,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share)										$ 0.75		$ 1.75