Cash and Available for Sale Securities (Tables)

6 Months Ended

Jun. 30, 2015

Cash and Available for Sale Securities [Abstract]

Company's cash and available-for-sale securities amortized cost and estimated fair

The following table summarizes the Company’s cash and available-for-sale securities’ amortized cost and estimated fair value by significant investment category as of June 30, 2015, and December 31, 2014 (in thousands):

	Amortized Cost and Estimated Fair Value
	June 30,		December 31,
	2015		2014
Cash and cash equivalents:
Cash	$	489	$	304
Cash equivalents
Money market mutual funds		2		1
Total cash equivalents		2		1
Total cash and cash equivalents		491		305
Short-term investments:
Certificates of deposit		23		123
Commercial paper		34		—
Other commodities		6		6
Collateralized debt obligations		—		—
Total short-term investments		63		129
Total cash, and cash equivalents, short-term and long-term investments	$	554	$	434