Operating Segments and Related 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	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment information
Revenue	$ 41,322	$ 42,988	$ 41,981	$ 37,901	$ 46,507	$ 53,403	$ 50,205	$ 45,101	$ 164,192	$ 195,216	$ 208,503
Net income (loss)	(2,145)	(239)	(1,468)	(3,674)	(6,397)	4,877	1,831	(497)	(7,526)	(186)	5,392
Income tax expense	2,388	554	186	113	1,084	1,029	586	56	3,241	2,755	1,297
Interest expense (income), net	(44)	(44)	(43)	54	12	75	53	(217)	(77)	(77)	966
EBIT									(4,362)	2,492	7,655
Depreciation of property and equipment	1,520	1,428	1,586	1,682	2,162	2,034	2,027	2,008	6,216	8,231	7,084
Amortization of intangible assets	831	895	902	903	1,185	1,204	1,332	1,276	3,531	4,997	7,224
EBITDA									5,385	15,720	21,963
Impairment charges	0	0	0	0	4,207	0	0	0	0	4,207	0
Foreign currency transaction (gains) losses on short-term intercompany balances	930	1,221	(163)	15	41	(636)	225	357	2,003	(13)	(377)
Acquisition-related charges (benefits)									249	602	(231)
Transformation severance and related expenses									4,050	2,544	2,107
Wage claim costs											984
Other (income) loss	(57)	0	0	0	0	0	0	0	57	0	0
Stock-based compensation									4,532	6,294	6,321
Adjusted EBITDA									16,276	29,354	30,767
Capital expenditures									4,709	6,875	7,931
Allocated assets	74,224				85,110				74,224	85,110
Cash and cash equivalents	25,735				43,700				25,735	43,700	37,806	20,337
Restricted cash	53				57				53	57
Deferred income taxes	41				1,708				41	1,708
Prepaid expenses and other assets	2,729				2,254				2,729	2,254
Total assets	102,782				132,829				102,782	132,829
Recovery Audit Services - Americas [Member]
Segment information
Revenue									106,533	118,649	121,638
EBIT									21,066	27,094	28,589
Depreciation of property and equipment									4,711	5,617	4,651
Amortization of intangible assets									2,002	2,792	4,355
EBITDA									27,779	35,503	37,595
Impairment charges										2,702
Foreign currency transaction (gains) losses on short-term intercompany balances									380	327	(44)
Acquisition-related charges (benefits)									0	1,315	(1)
Transformation severance and related expenses									1,348	107	493
Wage claim costs											577
Other (income) loss									0
Adjusted EBITDA									29,507	39,954	38,620
Capital expenditures									3,930	5,292	5,699
Allocated assets	50,252				55,978				50,252	55,978
Total assets	50,252				55,978				50,252	55,978
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment information
Revenue									44,319	46,436	53,783
EBIT									2,772	3,901	5,035
Depreciation of property and equipment									592	514	322
Amortization of intangible assets									1,195	1,508	2,062
EBITDA									4,559	5,923	7,419
Impairment charges										0
Foreign currency transaction (gains) losses on short-term intercompany balances									1,828	(316)	(331)
Acquisition-related charges (benefits)									0	(900)	(612)
Transformation severance and related expenses									1,285	1,135	1,156
Wage claim costs											0
Other (income) loss									0
Adjusted EBITDA									7,672	5,842	7,632
Capital expenditures									651	781	846
Allocated assets	18,556				16,706				18,556	16,706
Total assets	18,556				16,706				18,556	16,706
Adjacent Services [Member]
Segment information
Revenue									10,700	13,183	14,990
EBIT									(4,161)	(3,480)	(3,396)
Depreciation of property and equipment									722	652	770
Amortization of intangible assets									334	697	807
EBITDA									(3,105)	(2,131)	(1,819)
Impairment charges										71
Foreign currency transaction (gains) losses on short-term intercompany balances											0
Acquisition-related charges (benefits)									249	187	382
Transformation severance and related expenses									418	81	365
Wage claim costs											0
Other (income) loss									57
Adjusted EBITDA									(2,381)	(1,792)	(1,072)
Capital expenditures									123	376	369
Allocated assets	4,596				4,993				4,596	4,993
Total assets	4,596				4,993				4,596	4,993
Healthcare Claims Recovery Audit Services [Member]
Segment information
Revenue									2,640	16,948	18,092
EBIT									(4,827)	(2,240)	(407)
Depreciation of property and equipment									191	1,448	1,341
Amortization of intangible assets									0	0	0
EBITDA									(4,636)	(792)	934
Impairment charges										1,434
Foreign currency transaction (gains) losses on short-term intercompany balances											0
Acquisition-related charges (benefits)									0	0	0
Transformation severance and related expenses									410	87	29
Wage claim costs											407
Other (income) loss									0
Adjusted EBITDA									(4,226)	729	1,370
Capital expenditures									5	426	1,017
Allocated assets	820				7,433				820	7,433
Total assets	820				7,433				820	7,433
Corporate Support [Member]
Segment information
EBIT									(19,212)	(22,783)	(22,166)
EBITDA									(19,212)	(22,783)	(22,166)
Impairment charges										0
Foreign currency transaction (gains) losses on short-term intercompany balances									(205)	(24)	(2)
Acquisition-related charges (benefits)											0
Transformation severance and related expenses									589	1,134	64
Wage claim costs											0
Other (income) loss									0
Stock-based compensation									4,532	6,294	6,321
Adjusted EBITDA									(14,296)	(15,379)	(15,783)
Capital expenditures											0
Allocated assets					0					0
Cash and cash equivalents	25,735				43,700				25,735	43,700
Restricted cash	53				57				53	57
Deferred income taxes	41				1,708				41	1,708
Prepaid expenses and other assets	2,729				2,254				2,729	2,254
Total assets	$ 28,558				$ 47,719				$ 28,558	$ 47,719