INVESTMENTS (Tables)

6 Months Ended

Sep. 30, 2015

Available-for-sale and Held-to-maturity Investments

Our investments are classified as either available-for-sale or held-to-maturity. The following table summarizes available-for-sale and held-to-maturity investments as of September 30, 2015 and March 31, 2015 (in thousands):

	Available-for-Sale Investments
September 30, 2015	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value
Corporate bonds	$	4,329	$	-	$	(12	)	$	4,317
Total available-for-sale investments	$	4,329	$	-	$	(12	)	$	4,317

	Held-to-Maturity Investments
September 30, 2015	Amortized Cost		Gross Unrecognized Gain		Gross Unrecognized (Loss)			Fair Value
Certificates of deposit	$	3,733	$	6	$	-		$	3,739
Commercial paper		13,982		2		(1	)		13,983
Corporate bonds		47,539		9		(123	)		47,425
Municipal bonds		2,025		6		-			2,031
Total held-to-maturity investments	$	67,279	$	23	$	(124	)	$	67,178

	Available-for-Sale Investments
March 31, 2015	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value
Corporate bonds	$	4,346	$	-	$	(14	)	$	4,332
Total available-for-sale investments	$	4,346	$	-	$	(14	)	$	4,332

	Held-to-Maturity Investments
March 31, 2015	Amortized Cost		Gross Unrecognized Gain		Gross Unrecognized (Loss)			Fair Value
Certificates of deposit	$	6,717	$	4	$	(1	)	$	6,720
Commercial paper		13,484		1		-			13,485
Corporate bonds		22,773		21		(71	)		22,723
Municipal bonds		2,984		21		(1	)		3,004
Total held-to-maturity investments	$	45,958	$	47	$	(73	)	$	45,932

Amortized Cost and Fair Value of Investments, Classified by Stated Maturity

The following table summarizes the amortized cost and fair value of our investments, classified by stated maturity as of September 30, 2015 and March 31, 2015 (in thousands):

	September 30, 2015				September 30, 2015
	Available-for-Sale Investments				Held-to-Maturity Investments
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	1,017	$	1,015	$	48,493	$	48,470
Due in 1 to 4 years		3,312		3,302		18,786		18,708
Total investments	$	4,329	$	4,317	$	67,279	$	67,178

	March 31, 2015				March 31, 2015
	Available-for-Sale Investments				Held-to-Maturity Investments
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	-	$	-	$	26,109	$	26,151
Due in 1 to 4 years		4,346		4,332		19,849		19,781
Total investments	$	4,346	$	4,332	$	45,958	$	45,932