GOODWILL AND PURCHASED INTANGIBLE ASSETS (Details) (USD $)	6 Months Ended
	Sep. 30, 2012	Mar. 31, 2012
Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$ 2,705,000	$ 1,705,000
Finite-Lived Intangible Assets, Accumulated Amortization	(1,496,000)	(1,322,000)
Finite-Lived Intangible Assets, Net	1,209,000	383,000
Goodwill	15,500,000	14,000,000
Developed Technology Rights [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	1,000,000	0
Finite-Lived Intangible Assets, Accumulated Amortization	(34,000)	0
Finite-Lived Intangible Assets, Net	966,000	0
Finite-Lived Intangible Asset, Useful Life	5 years
Customer Relationships [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	1,705,000	1,705,000
Finite-Lived Intangible Assets, Accumulated Amortization	(1,462,000)	(1,322,000)
Finite-Lived Intangible Assets, Net	$ 243,000	$ 383,000
Finite-Lived Intangible Asset, Useful Life	8 years