Operating Segments and Related Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment information
Revenue	$ 46,507	$ 53,403	$ 50,205	$ 45,101	$ 53,109	$ 52,087	$ 51,658	$ 51,649	$ 195,216	$ 208,503	$ 203,117
Net income (loss)	(6,397)	4,877	1,831	(497)	1,533	2,565	1,002	292	(186)	5,392	2,816
Income tax expense	1,084	1,029	586	56	(289)	505	584	497	2,755	1,297	1,292
Interest income	12	75	53	(217)	(582)	515	529	504	(77)	966	1,616
EBIT									2,492	7,655	5,724
Depreciation of property and equipment	2,162	2,034	2,027	2,008	2,276	1,716	1,579	1,513	8,231	7,084	5,401
Amortization of intangible assets	1,185	1,204	1,332	1,276	2,007	1,431	1,459	2,327	4,997	7,224	4,991
EBITDA									15,720	21,963	16,116
Impairment charges	4,207	0	0	0	0	0	0	0	4,207	0	0
Foreign currency transaction (gains) losses on short-term intercompany balances	41	(636)	225	357	(187)	(348)	497	(339)	(13)	(377)	417
Acquisition-related charges (benefits)									602	382	800
Transformation severance and related expenses									2,544	2,107	2,031
Wage claim costs										984
Stock-based compensation									6,294	6,321	5,093
Adjusted EBITDA									29,354	31,380	24,457
Capital expenditures									6,875	7,931	8,287
Allocated assets	85,110				100,741				85,110	100,741
Cash and cash equivalents	43,700				37,806				43,700	37,806	20,337	18,448
Restricted cash	57				65				57	65
Deferred loan costs	0				193				0	193
Deferred income taxes	1,708				1,604				1,708	1,604
Prepaid expenses and other assets	2,254				3,177				2,254	3,177
Total assets	132,829				143,586				132,829	143,586
Recovery Audit Services - Americas [Member]
Segment information
Revenue									118,649	121,638	115,807
EBIT									27,094	28,589	26,280
Depreciation of property and equipment									5,617	4,651	3,491
Amortization of intangible assets									2,792	4,355	2,467
EBITDA									35,503	37,595	32,238
Impairment charges									2,702
Foreign currency transaction (gains) losses on short-term intercompany balances									327	(44)	144
Acquisition-related charges (benefits)									1,315		0
Transformation severance and related expenses									107	493	1,465
Wage claim costs										577
Adjusted EBITDA									39,954	38,621	33,847
Capital expenditures									5,292	5,699	5,459
Allocated assets	55,978				57,722				55,978	57,722
Total assets	55,978				57,722				55,978	57,722
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment information
Revenue									46,436	53,783	61,570
EBIT									3,901	5,035	7,484
Depreciation of property and equipment									514	322	417
Amortization of intangible assets									1,508	2,062	1,665
EBITDA									5,923	7,419	9,566
Foreign currency transaction (gains) losses on short-term intercompany balances									(316)	(331)	272
Acquisition-related charges (benefits)									(900)		0
Transformation severance and related expenses									1,135	1,156	566
Adjusted EBITDA									5,842	8,244	10,404
Capital expenditures									781	846	1,041
Allocated assets	16,706				17,893				16,706	17,893
Total assets	16,706				17,893				16,706	17,893
New Services [Member]
Segment information
Revenue									30,131	33,082	25,740
EBIT									(5,720)	(3,803)	(6,951)
Depreciation of property and equipment									2,100	2,111	1,493
Amortization of intangible assets									697	807	859
EBITDA									(2,923)	(885)	(4,599)
Impairment charges									1,505
Foreign currency transaction (gains) losses on short-term intercompany balances											1
Acquisition-related charges (benefits)									187	382	440
Transformation severance and related expenses									168	394	0
Wage claim costs										407
Adjusted EBITDA									(1,063)	298	(4,158)
Capital expenditures									802	1,386	1,787
Allocated assets	12,426				25,126				12,426	25,126
Total assets	12,426				25,126				12,426	25,126
Corporate Support [Member]
Segment information
EBIT									(22,783)	(22,166)	(21,089)
EBITDA									(22,783)	(22,166)	(21,089)
Foreign currency transaction (gains) losses on short-term intercompany balances									(24)	(2)
Acquisition-related charges (benefits)											360
Transformation severance and related expenses									1,134	64
Stock-based compensation									6,294	6,321	5,093
Adjusted EBITDA									(15,379)	(15,783)	(15,636)
Allocated assets					0					0
Cash and cash equivalents	43,700				37,806				43,700	37,806
Restricted cash	57				65				57	65
Deferred loan costs					193					193
Deferred income taxes	1,708				1,604				1,708	1,604
Prepaid expenses and other assets	2,254				3,177				2,254	3,177
Total assets	$ 47,719				$ 42,845				$ 47,719	$ 42,845