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EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Earning [Abstract]
Net Income	$ 4,639	$ 4,640	$ 5,181	$ 3,595	$ 3,363	$ 4,204	$ 4,144	$ 4,002	$ 3,474	$ 3,672	$ 3,147	$ 3,125	$ 18,055	$ 15,713	$ 13,418
Basic EPS [Abstract]
Weighted average common shares outstanding (in shares)													6,730,086	6,117,577	5,595,733
Less weighted average nonvested shares (in shares)													(4,237)	(4,301)	(2,032)
Weighted average common shares outstanding (in shares)													6,725,849	6,113,276	5,593,701
Earnings Per Common Share [Abstract]
Basic (in dollars per share)	$ 0.64	$ 0.67	$ 0.79	$ 0.58	$ 0.54	$ 0.69	$ 0.68	$ 0.66	$ 0.59	$ 0.67	$ 0.57	$ 0.57	$ 2.68	$ 2.57	$ 2.40
Diluted EPS [Abstract]
Weighted average common shares outstanding for basic earnings per common share (in shares)													6,725,849	6,113,276	5,593,701
Add dilutive effect of assumed exercises of stock options, net of tax benefits (in shares)													68,951	85,133	53,437
Weighted average common and dilutive potential common shares outstanding (in shares)													6,794,800	6,198,409	5,647,138
Earnings Per Common Share [Abstract]
Diluted (in dollars per share)	$ 0.64	$ 0.66	$ 0.78	$ 0.58	$ 0.53	$ 0.68	$ 0.67	$ 0.65	$ 0.58	$ 0.66	$ 0.57	$ 0.57	$ 2.66	$ 2.53	$ 2.38
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from computing diluted EPS (in shares)													28,891	29,984	88,828

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