Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income (loss)	$ (76,000)	$ 2,167,000	$ (4,405,000)	$ (1,546,000)
Other comprehensive income (loss), net:
Unrealized gain (loss) on investments	21,000	56,000	(77,000)	111,000
Foreign currency translation adjustment	17,000	63,000	(69,000)	(37,000)
Total other comprehensive income (loss)	38,000	119,000	(146,000)	74,000
Comprehensive income (loss)	$ (38,000)	$ 2,286,000	$ (4,551,000)	$ (1,472,000)