Stockholders' Equity and Employee Stock Option Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 77	$ 157
Cost of Revenues [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	42	(41)
Product development [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	46	99
Sales and marketing [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	(109)	(83)
General and administrative [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 98	$ 182