EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Basic earnings per share [Abstract]
Income available to common stockholders									$ 12,570	$ 10,155	$ 5,947
Weighted average common shares outstanding (in shares)									7,997,047	7,940,892	7,937,143
Earnings per share (in dollars per share)	$ 0.44	$ 0.47	$ 0.37	$ 0.29	$ 0.36	$ 0.38	$ 0.23	$ 0.32	$ 1.57	$ 1.28	$ 0.75
Diluted earnings per share [Abstract]
Income available to common stockholders									$ 12,570	$ 10,155	$ 5,947
Weighted average common shares outstanding (in shares)									7,997,047	7,940,892	7,937,143
Add dilutive effects of potential additional common stock (in shares)									448,202	240,611	97,936
Weighted average common and dilutive potential Common shares outstanding (in shares)									8,445,249	8,181,503	8,035,079
Earnings per share assuming dilution (in dollars per share)	$ 0.41	$ 0.44	$ 0.35	$ 0.28	$ 0.34	$ 0.37	$ 0.22	$ 0.31	$ 1.49	$ 1.24	$ 0.74
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities not considered in computing diluted earnings per share (in shares)									84,100	183,699	312,449