Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

Name:	us-gaap_MoneyMarketFundsAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016
Assets [Abstract]
Money market funds	$ 36,521		$ 39,509
Liabilities [Abstract]
Contingent consideration	1,119		1,041
Adjustment to fair value of contingent consideration	78	$ 110
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Money market funds	36,521		39,509
Liabilities [Abstract]
Contingent consideration	0		0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Money market funds	0		0
Liabilities [Abstract]
Contingent consideration	0		0
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Money market funds	0		0
Liabilities [Abstract]
Contingent consideration	$ 1,119		$ 1,041