Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Company's Financial Assets and (Liabilities) at Fair Value on Recurring Basis

The following table summarizes the basis used to measure the Company’s financial assets at fair value on a recurring basis in the balance sheet at March 31, 2015 and December 31, 2014:

	Basis of Fair Value Measurements
	Balance at   March 31, 2015		Level 1		Level 2		Level 3
Money market investment	$	27,933	$	27,933	$	—	$	—
Available for sale securities	5,079		5,079		—		—

	Basis of Fair Value Measurements
	Balance at   December 31, 2014		Level 1		Level 2		Level 3
Money market investment	$	21,094	$	21,094	$	—	$	—
Available for sale securities	4,513		4,513		—		—