STOCK-BASED COMPENSATION, PERFORMANCE SHARES AND RESTRICTED STOCK ACTIVITY (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2013		Nov. 10, 2015	Nov. 11, 2014
Performance Shares [Member]
Shares
Outstanding at beginning of period (in shares)	[1]	247,536		156,644		169,486
Granted (in shares)	[1]	102,790		147,728		99,808
Vested (in shares)	[1]	(112,446)	[2]	(56,836)	[3]	0
Cancelled/forfeited (in shares)	[1]	(23,416)	[4]	0		(112,650)	[5]
Outstanding at end of period (in shares)	[1]	214,464		247,536		156,644
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share)		$ 18.30		$ 18.35		$ 16.63
Granted (in usd per share)		28.25		20.28		15.37
Vested (in usd per share)		17.10	[2]	23.59	[3]	0.00
Cancelled/forfeited (in usd per share)		17.98	[4]	0.00		13.12	[5]
Outstanding at end of period (in usd per share)		$ 23.40		$ 18.30		$ 18.35
Total Fair Value of Vested Shares
Percent of awards to common stock, target		100.00%		100.00%		100.00%
Performance Shares [Member] | Minimum [Member]
Total Fair Value of Vested Shares
Percent of awards to common stock		0.00%
Performance Shares [Member] | Maximum [Member]
Total Fair Value of Vested Shares
Percent of awards to common stock		150.00%
Performance Shares, Subject to Performance Conditions [Member]
Shares
Granted (in shares)	[1]	61,576		78,574
Total Fair Value of Vested Shares
Percent of awards to common stock		120.00%		150.00%
Number of common shared issued		112,918		85,254		0			8,984
Performance Shares, Subject to Performance Conditions [Member] | Subsequent Event [Member]
Total Fair Value of Vested Shares
Number of common shared issued								9,364
Number of shares canceled								9,364
Restricted Stock [Member]
Shares
Outstanding at beginning of period (in shares)		41,491		78,511		118,692
Granted (in shares)		61,972		33,356		4,278
Vested (in shares)		(18,170)		(68,460)		(39,359)
Cancelled/forfeited (in shares)		(3,801)		(1,916)		(5,100)
Outstanding at end of period (in shares)		81,492		41,491		78,511
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share)		$ 22.60		$ 20.53		$ 20.20
Granted (in usd per share)		29.41		22.78		20.31
Vested (in usd per share)		24.45		20.37		19.55
Cancelled/forfeited (in usd per share)		26.79		20.37		20.37
Outstanding at end of period (in usd per share)		$ 27.17		$ 22.60		$ 20.53
Total Fair Value of Vested Shares
Vested		$ 510		$ 1,534		$ 888

[1] The number of common shares issued related to certain performance shares may range from zero to 150 percent of the number of shares shown in the table above based on the Company's achievement of performance goals.

[2] As certified by the Company's Leadership and Compensation Committee on November 10, 2015, the number of common shares related to performance shares earned was 120 percent, or 112,918 shares, excluding accumulated dividends. The number represented on this line is the target number of 100 percent. See footnote (1) above. Also included in the vested number are 9,364 shares certified by the Leadership and Compensation Committee on November 11, 2014 and 8,984 shares certified by the Leadership and Compensation Committee on November 10, 2015.

[3] As certified by the Company's Leadership and Compensation Committee on November 11, 2014, the number of common shares related to performance shares earned was 150 percent, or 85,254 shares, excluding accumulated dividends. The number represented on this line is the target number of 100 percent. See footnote (1) above.

[4] As certified by the Company's Leadership and Compensation Committee on November 10, 2015, 9,364 shares were canceled due to not achieving a certain performance target. The remainder were forfeitures due to individuals departing the company.

[5] As certified by the Company's Leadership and Compensation Committee on November 12, 2013, the number of common shares granted in fiscal 2011 related to performance shares and market condition shares earned was zero. The number represented on this line is the target number of 100 percent. See footnote (1) above.