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7. FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Mar. 31, 2021

FINANCIAL INSTRUMENTS

Schedule of fair value of financial assets measured on a recurring basis

The fair value of financial assets measured on a recurring basis is as follows (in thousands):

					Fair Value Measurements at Reporting Date Using
					Quoted Prices
					in Active			Significant
					Markets for			Other			Significant
					Identical Assets			Observable			Unobservable
					and Liabilities			Inputs			Inputs
		March 31, 2021			(Level 1)			(Level 2)			(Level 3)
Assets:
Money market funds		$	22,992		$	22,992		$	—		$	—
Marketable securities			15,509			—			15,509			—
Total		$	38,501		$	22,992		$	15,509		$	—
Liabilities:
Contingent consideration		$	4,225		$	—		$	—		$	4,225

					Fair Value Measurements at Reporting Date Using
					Quoted Prices
					in Active			Significant
					Markets for			Other			Significant
					Identical Assets			Observable			Unobservable
					and Liabilities			Inputs			Inputs
		March 31, 2020			(Level 1)			(Level 2)			(Level 3)
Assets:
Money market funds		$	14,117		$	14,117		$	—		$	—
Marketable securities			19,178			—			19,178			—
Total		$	33,295		$	14,117		$	19,178		$	—
Liabilities:
Contingent consideration		$	3,898		$	—		$	—		$	3,898

Schedule of changes in fair value of contingent consideration

		Year Ended March 31,
		2021			2020			2019
		(In thousands)
Contingent consideration, beginning of period		$	3,898		$	4,206		$	5,514
Change due to accretion			98			112			147
Re-measurement of contingent consideration			229			80			(326)
Payment of contingent consideration			—			(500)			(1,129)
Contingent consideration, end of period		$	4,225		$	3,898		$	4,206

Schedule of available-for-sale investments

		March 31, 2021
					Gross			Gross
					Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
		(In thousands)
Short-term investments:
Certificates of deposit		$	1,495		$	13		$	—		$	1,508
Supranational obligations			2,273			1			—			2,274
Agency bonds			5,911			24			—			5,935
Total short-term investments		$	9,679		$	38		$	—		$	9,717
Long-term investments:
Certificates of deposit		$	3,750		$	19		$	(1)		$	3,768
Supranational obligations			1,023			—			(1)			1,022
Agency bonds			1,001			1			—			1,002
Total long-term investments		$	5,774		$	20		$	(2)		$	5,792

		March 31, 2020
					Gross			Gross
					Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
		(In thousands)
Short-term investments:
Certificates of deposit		$	12,000		$	52		$	(1)		$	12,051
Agency bonds			2,989			21			—			3,010
Total short-term investments		$	14,989		$	73		$	(1)		$	15,061
Long-term investments:
Certificates of deposit		$	745		$	18		$	—		$	763
Agency bonds			2,029			42			—			2,071
Supranational obligations			1,270			13			—			1,283
Total long-term investments		$	4,044		$	73		$	—		$	4,117

Schedule of unrealized losses and fair value of investments

		March 31, 2021
		Less Than 12 Months						12 Months or Greater						Total
			Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
			Value			Loss			Value			Loss			Value			Loss
		(In thousands)
Certificates of deposit		$	1,499		$	(1)		$	—		$	—		$	1,499		$	(1)
Supranational obligations			2,037			(1)			—			—			2,037			(1)
		$	3,536		$	(2)		$	—		$	—		$	3,536		$	(2)

		March 31, 2020
		Less Than 12 Months						12 Months or Greater						Total
			Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
			Value			Loss			Value			Loss			Value			Loss
		(In thousands)
Certificates of deposit		$	2,498		$	(2)		$	-		$	-		$	2,498		$	(2)
		$	2,498		$	(2)		$	-		$	-		$	2,498		$	(2)

Schedule of contractual maturities of the available-for-sale investments

					Fair
		Cost			Value
		(In thousands)
Maturing within one year		$	9,679		$	9,717
Maturing in one to three years			5,774			5,792
		$	15,453		$	15,509

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