FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Assets [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0	$ 0	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	0	0	0
Fair Value, Asset Transfers Into Level 3, Amount	0	0	0	0
Fair Value, Asset Transfers Out of Level 3, Amount	0	0	0	0
Liabilities [Abstract]
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	0	0	0
Fair Value, Liability Transfers Into Level 3, Amount	0	0	0	0
Fair Value, Liability Transfers Out of Level 3, Amount	0	$ 0	0	$ 0
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Cash equivalents	147		147		$ 3,053
Available-for-sale Investments [Abstract]
Corporate bonds	6,015		6,015		4,332
Total assets at fair value	6,162		6,162		7,385
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Assets [Abstract]
Cash equivalents	147		147		3,053
Available-for-sale Investments [Abstract]
Corporate bonds	0		0		0
Total assets at fair value	147		147		3,053
Liabilities [Abstract]
Total liabilities at fair value	0		0		0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Assets [Abstract]
Cash equivalents	0		0		0
Available-for-sale Investments [Abstract]
Corporate bonds	6,015		6,015		4,332
Total assets at fair value	6,015		6,015		4,332
Liabilities [Abstract]
Total liabilities at fair value	0		0		0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Assets [Abstract]
Cash equivalents	0		0		0
Available-for-sale Investments [Abstract]
Corporate bonds	0		0		0
Total assets at fair value	0		0		0
Liabilities [Abstract]
Total liabilities at fair value	$ 0		$ 0		$ 0