EARNINGS PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Numerators [Abstract]
Net income	$ 951	[1]	$ 5,639	[1]	$ 5,105	[1]	$ 4,792	[1]	$ 4,076	$ 4,078	$ 3,966	$ 4,269	$ 16,487	[1]	$ 16,389	$ 12,931
Denominators [Abstract]
Weighted average common shares - basic (in shares)													11,701,607		11,559,895	11,420,524
Dilutive Securities Included in Computation of Earnings Per Share [Line Items]
Weighted average common shares - diluted (in shares)													11,839,182		11,741,513	11,636,385
Basic earnings per share (in dollars per share)	$ 0.08		$ 0.48		$ 0.44		$ 0.41		$ 0.35	$ 0.35	$ 0.34	$ 0.37	$ 1.41		$ 1.42	$ 1.13
Diluted earnings per share (in dollars per share)	$ 0.08		$ 0.48		$ 0.43		$ 0.41		$ 0.35	$ 0.35	$ 0.34	$ 0.37	$ 1.39		$ 1.40	$ 1.11
Restricted Stock[Member]
Dilutive Securities Included in Computation of Earnings Per Share [Line Items]
Dilutive effect of restricted stock and employee stock options (in shares)													137,575		181,618	209,743
Employee Stock Options [Member]
Dilutive Securities Included in Computation of Earnings Per Share [Line Items]
Dilutive effect of restricted stock and employee stock options (in shares)													0		0	6,118

[1] The fourth quarter of 2012 includes $4,860 in acquisition fees related to Valent.