STOCKHOLDERS' EQUITY (Details 5) (Stock options, USD $)	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Stock options
Stockholder's equity
Total intrinsic value of stock options exercised (in dollars)	$ 616,000	$ 1,906,000	$ 986,000
Unrecognized compensation costs	0
Tax benefit recorded to additional paid-in capital for exercises and/or sales of stock options or stock	$ 291,000	$ 9,000	$ 135,000

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration