Stockholders' Equity and Employee Stock Option Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 156	$ (314)	$ 109	$ 992
Cost of Revenues [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	(34)	76	(102)	235
Product development [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	94	130	229	(37)
Sales and marketing [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	(19)	79	(109)	174
General and administrative [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	115	225	91	962
Discontinued Operations [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 0	$ (824)	$ 0	$ (342)