Fair Value Measurements (Tables)

6 Months Ended

Sep. 30, 2013

Fair Value Measurements [Abstract]

Assets carried at fair value measured on a recurring basis

The following table provides the assets carried at fair value measured on a recurring basis.

Asset Class	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2013
Short-term investments:
U.S. Government and Agency debt securities	$	5,205	$	-	$	5,205	$	-
Long-term investments:
U.S. Government and Agency debt securities		-		-		-		-
March 31, 2013
Short-term investments:
U.S. Government and Agency debt securities		3,757		-		3,757		-
Long-term investments:
U.S. Government and Agency debt securities		3,452		-		3,452		-