Marketable Securities (Tables)

12 Months Ended

Mar. 31, 2017

Marketable Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following is a summary of available-for-sale securities at March 31, 2016 (In thousands):

	Amortized Cost		Gross Unrealized Gains		Gross  Unrealized Losses		Estimated Fair Value
Marketable securities	$	18,080	$	253	$	147	$	18,186

he following is a summary of available-for-sale securities at March 31, 2017 (In thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Marketable securities	$	7,475	$	248	$	37	$	7,686

Schedule of Unrealized Loss on Investments

The aggregate fair value of investments and unrealized losses on available-for-sale securities in an unrealized loss position at March 31, 2016 are as follows (In thousands):

	Aggregate  Fair Value		Unrealized  Losses
Securities in a continuous loss position for less than 12 months	$	1,138	$	58
Securities in a continuous loss position for more than 12 months	4,871		89
	$	6,009	$	147

The aggregate fair value of investments and unrealized losses on available-for-sale securities in an unrealized loss position at March 31, 2017 are as follows (In thousands):

	Aggregate  Fair Value		Unrealized Losses
Securities in a continuous loss position for less than 12 months	$	2,050	$	37
Securities in a continuous loss position for more than 12 months	—		—
	$	2,050	$	37