DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	1 Months Ended	12 Months Ended
	Feb. 28, 2011 USD ($)	Mar. 31, 2016 USD ($) Segment Customer	Mar. 31, 2015 USD ($) Customer	Mar. 31, 2014 USD ($)
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Number of reportable segments | Segment		2
Investments [Abstract]
Impairment losses		$ 0	$ 0	$ 0
Schedule of Equity Method Investments [Line Items]
Equity ownership interest purchased	15.00%
Payment to acquire equity ownership interest in unconsolidated affiliate	$ 2,800,000
Valuation of Long-Lived Assets [Abstract]
Impairment of long-lived assets		$ 13,000	1,900,000	0
Multiple Element Revenue Arrangements [Abstract]
Period for instrument and consumable purchases under lease agreement		6 years
Lease receivables including accrued interest		$ 2,100,000	0
Sales Incentive Programs [Abstract]
Promotional period		5 years
Advertising Expense [Abstract]
Advertising expense		$ 700,000	900,000	800,000
Income Taxes [Abstract]
Percentage to measure tax benefit		50.00%
Income tax penalties and interest expense on unrecognized tax benefits		$ 0	0	0
Income tax penalties and interest accrued on uncertain tax positions		0	0
Foreign currency [Abstract]
Foreign exchange (gain) loss		$ 149,000	$ (1,794,000)	$ 477,000
Minimum [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Life of extended maintenance contract		1 year
Maximum [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Life of extended maintenance contract		3 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		2 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		15 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		8 years
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		2 years
Computer Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		7 years
Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		25 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		Shorter of estimated useful life or remaining lease term
Units Held for Loan, Evaluation or Demonstration Purposes [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		3 years
Units Held for Loan, Evaluation or Demonstration Purposes [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		5 years
Intangible Assets [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life		2 years
Intangible Assets [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life		10 years
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Accounts receivable by major customer		25.00%	26.00%
Number of major customers | Customer		1	1