STOCK-BASED COMPENSATION (Details) (USD $)	6 Months Ended					12 Months Ended				6 Months Ended
	Mar. 31, 2013	Mar. 31, 2013 Restricted stock awards	Mar. 31, 2013 Restricted stock awards Minimum	Mar. 31, 2013 Restricted stock awards Maximum	Mar. 31, 2013 Restricted stock awards Performance-based Executive officers	Sep. 30, 2012 Restricted stock awards Performance-based Executive officers item	Mar. 31, 2013 Restricted stock awards Performance-based Date of the filing of the annual report on Form 10-K for the year ended September 30, 2012 Executive officers	Mar. 31, 2013 Restricted stock awards Performance-based Date of the filing of the annual report on Form 10-K for the year ended September 30, 2013 Executive officers	Mar. 31, 2013 Restricted stock awards Performance-based Date of the filing of the annual report on Form 10-K for the year ended September 30, 2014 Executive officers	Mar. 31, 2013 Stock option awards	Mar. 31, 2012 Stock option awards	Mar. 31, 2013 Stock option awards Minimum	Mar. 31, 2013 Stock option awards Maximum	Mar. 31, 2013 Stock-based incentive plans
EMPLOYEE BENEFITS
Vesting period			2 years	5 years								3 years	5 years
Expiration period										10 years
Reserved but unissued shares that can be awarded in the form of stock options or restricted share awards														568,184
Summary of restricted stock award activity
Nonvested at beginning of year (in shares)		365,170
Granted (in shares)		37,092				250,000
Vested (in shares)		(137,861)
Nonvested at end of year (in shares)		264,401
Restricted Stock Awards, Weighted Average Grant-Date Fair Value
Nonvested at beginning of year (in dollars per share)		$ 7.13
Granted (in dollars per share)		$ 8.58
Vested (in dollars per share)		$ 7.27
Nonvested at end of year (in dollars per share)		$ 7.27
Summary of stock option program activity
Outstanding at beginning of year (in shares)										629,936
Granted (in shares)										17,500	0
Exercised (in shares)	(8,400)									(8,400)
Forfeited (in shares)										(18,100)
Outstanding at end of year (in shares)										620,936
Exercisable at end of year (in shares)										571,053
Stock Option Program, Weighted Average Exercise Price
Outstanding at beginning of year (in dollars per share)										$ 11.20
Granted (in dollars per share)										$ 8.39
Exercised (in dollars per share)										$ 7.61
Forfeited (in dollars per share)										$ 9.59
Outstanding at end of year (in dollars per share)										$ 11.22
Exercisable at end of year (in dollars per share)										$ 11.26
Stock Option Program, Aggregate Intrinsic Value
Outstanding at end of year (in dollars)										$ 578,534
Exercisable at end of year (in dollars)										531,868
Stock Option Program, Weighted Average Remaining Contractual Life
Outstanding at end of year										4 years 4 months 24 days
Exercisable at end of year										4 years 2 months 12 days
Stock option program
Weighted-average fair value per share of options granted (in dollars per share)										$ 2.12
Cash received from stock options exercised										64,000
Total intrinsic value of stock options exercised										$ 9,000
Restricted stock awards
Number of executive officers to whom awards are granted						6
Percentage of restricted stock which will vest							25.00%	25.00%	50.00%
Percentage of shares received required to be held					33.00%
Period from the date of date of vesting during which awards received are required to be held					5 years