SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014 segment	Dec. 31, 2013	Dec. 31, 2012
SEGMENT INFORMATION
Number of reportable segments									1
Revenue	$ 43,864	$ 41,306	$ 42,144	$ 40,036	$ 36,411	$ 37,343	$ 37,406	$ 28,080	$ 167,350	$ 139,240	$ 77,443
Cost of revenue (exclusive of depreciation shown separately below)									7,903	6,542	4,295
Selling and marketing expense									112,704	91,121	48,934
General and administrative expense									25,883	24,658	22,231
Product development									7,457	5,264	3,529
Depreciation									3,245	3,501	4,105
Amortization of intangibles									136	147	358
Restructuring and severance									373	159	(57)
Litigation settlements and contingencies									10,618	8,955	(3,101)
Total costs and expenses									168,319	140,347	80,294
Operating income (loss)	1,712	554	2,600	(5,835)	962	222	(2,045)	(246)	(969)	(1,107)	(2,851)
Adjustments to reconcile to Adjusted EBITDA:
Amortization of intangibles									136	147	358
Depreciation									3,245	3,501	4,105
Restructuring and severance									373	159	(57)
Loss on disposal of assets									282	165	738
Impairment of long-lived assets									805	0	0
Non-cash compensation									7,277	5,627	4,587
Special Options Bonus										920
Acquisition expense									60	350
Litigation settlements and contingencies									10,618	8,955	(3,101)
Adjusted EBITDA									21,827	18,717	3,779
Adjustments to reconcile to Income/loss before Taxes:
Operating loss	1,712	554	2,600	(5,835)	962	222	(2,045)	(246)	(969)	(1,107)	(2,851)
Interest expense									(2)	(19)	(881)
Loss before income taxes									(971)	(1,126)	(3,732)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									(971)
Lending
SEGMENT INFORMATION
Revenue									154,504	127,985	61,176
Cost of revenue (exclusive of depreciation shown separately below)									7,399	5,469	3,238
Selling and marketing expense									104,388	83,694	35,250
General and administrative expense									4,898	3,629	3,470
Product development									6,345	4,302	2,277
Depreciation									1,596	1,453	1,536
Amortization of intangibles									0	0	0
Restructuring and severance									268	78	20
Litigation settlements and contingencies									0	0	0
Total costs and expenses									124,894	98,625	45,791
Operating income (loss)									29,610	29,360	15,385
Adjustments to reconcile to Adjusted EBITDA:
Amortization of intangibles									0	0	0
Depreciation									1,596	1,453	1,536
Restructuring and severance									268	78	20
Loss on disposal of assets									45	0	388
Impairment of long-lived assets									0
Non-cash compensation									2,404	1,681	987
Special Options Bonus										0
Acquisition expense									0
Litigation settlements and contingencies									0	0	0
Adjusted EBITDA									33,923	32,572	18,316
Adjustments to reconcile to Income/loss before Taxes:
Operating loss									29,610	29,360	15,385
Other
SEGMENT INFORMATION
Revenue									12,846	10,632	14,620
Cost of revenue (exclusive of depreciation shown separately below)									504	613	536
Selling and marketing expense									8,316	7,449	13,677
General and administrative expense									3,979	2,245	2,888
Product development									1,088	962	1,258
Depreciation									1,284	1,642	1,991
Amortization of intangibles									136	147	358
Restructuring and severance									12	46	11
Litigation settlements and contingencies									2	31	0
Total costs and expenses									15,321	13,135	20,719
Operating income (loss)									(2,475)	(2,503)	(6,099)
Adjustments to reconcile to Adjusted EBITDA:
Amortization of intangibles									136	147	358
Depreciation									1,284	1,642	1,991
Restructuring and severance									12	46	11
Loss on disposal of assets									220	0	345
Impairment of long-lived assets									805
Non-cash compensation									1,043	689	507
Special Options Bonus										0
Acquisition expense									60	0
Litigation settlements and contingencies									2	31	0
Adjusted EBITDA									1,087	52	(2,887)
Adjustments to reconcile to Income/loss before Taxes:
Operating loss									(2,475)	(2,503)	(6,099)
Corporate
SEGMENT INFORMATION
Revenue									0	623	1,647
Cost of revenue (exclusive of depreciation shown separately below)									0	460	521
Selling and marketing expense									0	(22)	7
General and administrative expense									17,006	18,784	15,873
Product development									24	0	(6)
Depreciation									365	406	578
Amortization of intangibles									0	0	0
Restructuring and severance									93	35	(88)
Litigation settlements and contingencies									10,616	8,924	(3,101)
Total costs and expenses									28,104	28,587	13,784
Operating income (loss)									(28,104)	(27,964)	(12,137)
Adjustments to reconcile to Adjusted EBITDA:
Amortization of intangibles									0	0	0
Depreciation									365	406	578
Restructuring and severance									93	35	(88)
Loss on disposal of assets									17	165	5
Impairment of long-lived assets									0
Non-cash compensation									3,830	3,257	3,093
Special Options Bonus										920
Acquisition expense									0	350
Litigation settlements and contingencies									10,616	8,924	(3,101)
Adjusted EBITDA									(13,183)	(13,907)	(11,650)
Adjustments to reconcile to Income/loss before Taxes:
Operating loss									(28,104)	(27,964)	(12,137)
Mortgage Products [Member] | Lending
SEGMENT INFORMATION
Revenue									134,137	123,091	59,362
Non-mortgage Products [Member] | Lending
SEGMENT INFORMATION
Revenue									20,367	4,894	1,814
Lending Products [Member] | Lending
SEGMENT INFORMATION
Revenue									$ 154,504	$ 127,985	$ 61,176