Stockholders' Equity and Employee Stock Option Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 188	$ 156	$ 250	$ 109
Cost of Revenues [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	7	(34)	(39)	(102)
Product development [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	74	94	62	229
Sales and marketing [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	53	(19)	(68)	(109)
General and administrative [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 54	$ 115	$ 295	$ 91