Quarterly report pursuant to Section 13 or 15(d)

Short-term Investments (Details)

v3.3.1.900
Short-term Investments (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Mar. 31, 2015
Schedule of Investments [Line Items]    
Certificates of deposit   $ 7,912
Held-to-maturity, pre-refunded municipal bonds $ 1,242 15,994
Total short-term investments $ 1,242 $ 23,906