STOCK-BASED COMPENSATION, STOCK OPTION ACTIVITY (Details) - $ / shares	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Shares
Outstanding at beginning of period (in shares)	48,250	133,250	163,250
Granted (in shares)	0	0	0
Exercised (in shares)	(48,250)	(85,000)	(30,000)
Forfeited (in shares)	0	0	0
Outstanding at end of period (in shares)	0	48,250	133,250
Shares, Exercisable at end of period (in shares)	0	48,250	133,250
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)	$ 15.00	$ 14.77	$ 14.36
Granted (in usd per share)	0.00	0.00	0.00
Exercised (in usd per share)	15.00	13.13	12.54
Forfeited (in usd per share)	0.00	0.00	0.00
Outstanding at end of period (in usd per share)	0.00	15.00	14.77
Weighted Average Exercise Price, Exercisable at end of period (in usd per share)	$ 0.00	$ 15.00	$ 14.77