Short-term Investments

3 Months Ended

Mar. 31, 2015

Short-term Investments [Abstract]

Short-term Investments

4.Short-term Investments

The Company held $37.1 million of short-term investments at March 31, 2015, as compared to $45.6 million at December 31, 2014.  The Company has classified these investments as available for sale.  These investments are federally insured certificates of deposit in the following amounts and maturities: $15.0 million with a maturity date of August 27, 2015; $12.1 million with a maturity date of April 30, 2015; and $10.0 million with a maturity date of April 23, 2015.