ACCOUNTING FOR STOCK-BASED COMPENSATION (Details 2) (USD $)	6 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
Stock Option and Other Compensation Plans
Number of shares that remain available for future issuance under the plans	513,000
Minimum
Stock Option and Other Compensation Plans
Vesting period for awards granted under the plans	1 year
Maximum
Stock Option and Other Compensation Plans
Vesting period for awards granted under the plans	3 years
Stock options
Stock Option and Other Compensation Plans
Term of awards from the date of grant	10 years
Number of Shares
Options outstanding at the beginning of the period (in shares)	224,964
Grants (in shares)	0	0
Exercises (in shares)	(22,224)
Cancellations (in shares)	(906)
Options outstanding at the end of the period (in shares)	201,834		224,964
Options exercisable at the end of the period (in shares)	201,834
Weighted Average Exercise Price
Options outstanding at the beginning of the period (in dollars per share)	$ 62.75
Exercises (in dollars per share)	$ 39.90
Cancellations (in dollars per share)	$ 61.40
Options outstanding at the end of the period (in dollars per share)	$ 65.27		$ 62.75
Weighted Average Contractual Life
Options outstanding at the end of the period	3 years 3 months 15 days		3 years 6 months 26 days
Aggregate Intrinsic Value
Exercises (in dollars)	$ 588,000
Remaining unrecognized compensation cost (in dollars)	$ 0