Condensed Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 11,691	$ 8,979	$ 32,951	$ 24,541
Expenses:
Sales and marketing (1)	7,699	6,976	21,726	21,119
Technology and product development (1)	2,265	2,207	7,366	5,937
General and administrative (1)	2,064	1,657	5,774	5,083
Depreciation and amortization of property and equipment (2)	754	655	2,166	1,912
Amortization of acquired intangible assets	849	374	2,508	898
Loss on asset disposition		174		174
Total expenses	13,631	12,043	39,540	35,123
Loss from operations	(1,940)	(3,064)	(6,589)	(10,582)
Interest income and expense, net	7	15	24	59
Loss before income tax expense	(1,933)	(3,049)	(6,565)	(10,523)
Income tax expense	10	3	46	9
Net loss	(1,943)	(3,052)	(6,611)	(10,532)
Net loss attributable to noncontrolling interest		(91)		(381)
Net loss attributable to Market Leader	$ (1,943)	$ (2,961)	$ (6,611)	$ (10,151)
Net loss per share—basic and diluted (in Dollars per share)	$ (0.07)	$ (0.12)	$ (0.26)	$ (0.40)