Operating Segments and Related Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Revenue	$ 35,137	$ 33,365	$ 101,661	$ 103,345
Net income (loss) from continuing operations	2,150	(2,877)	2,052	(3,309)
Income tax expense (benefit)	(685)	421	(21)	1,172
Interest (income), net	(14)	(8)	(55)	(103)
EBIT	1,451	(2,464)	1,976	(2,240)
Depreciation of property and equipment	1,376	1,255	3,824	3,828
Amortization of intangible assets	393	517	1,182	2,017
EBITDA	3,220	(692)	6,982	3,605
Other (income) loss	(168)	1,612	(140)	1,612
Foreign currency transaction (gains) losses on short-term intercompany balances	(165)	654	(976)	1,930
Transformation severance and related expenses	420	373	1,179	871
Stock-based compensation	1,424	1,381	3,224	4,530
Adjusted EBITDA	4,731	3,328	10,269	12,548
Recovery Audit Services - Americas
Segment Reporting Information [Line Items]
Revenue	25,719	23,981	72,408	71,748
EBIT	7,371	5,255	17,364	15,838
Depreciation of property and equipment	935	947	2,863	2,895
Amortization of intangible assets	373	437	1,118	1,319
EBITDA	8,679	6,639	21,345	20,052
Foreign currency transaction (gains) losses on short-term intercompany balances	120	393	(108)	651
Transformation severance and related expenses	95	101	516	265
Adjusted EBITDA	8,894	7,133	21,753	20,968
Recovery Audit Services - Europe/Asia-Pacific
Segment Reporting Information [Line Items]
Revenue	8,736	8,052	26,683	27,307
EBIT	1,274	365	4,032	1,719
Depreciation of property and equipment	141	148	379	454
Amortization of intangible assets	0	47	0	600
EBITDA	1,415	560	4,411	2,773
Foreign currency transaction (gains) losses on short-term intercompany balances	(227)	287	(787)	1,359
Transformation severance and related expenses	188	0	284	268
Adjusted EBITDA	1,376	847	3,908	4,400
Adjacent Services
Segment Reporting Information [Line Items]
Revenue	682	1,332	2,570	4,290
EBIT	(1,089)	(2,373)	(2,645)	(5,019)
Depreciation of property and equipment	300	160	582	479
Amortization of intangible assets	20	33	64	98
EBITDA	(769)	(2,180)	(1,999)	(4,442)
Other (income) loss	(168)	1,612	(140)	1,612
Foreign currency transaction (gains) losses on short-term intercompany balances	1	714	(7)	7
Transformation severance and related expenses	139	0	138	30
Adjusted EBITDA	(797)	(1,282)	(2,008)	(2,793)
Corporate Segment
Segment Reporting Information [Line Items]
EBIT	(6,105)	(5,711)	(16,775)	(14,778)
EBITDA	(6,105)	(5,711)	(16,775)	(14,778)
Foreign currency transaction (gains) losses on short-term intercompany balances	(59)	688	(74)	(87)
Transformation severance and related expenses	(2)	272	241	308
Stock-based compensation	1,424	1,381	3,224	4,530
Adjusted EBITDA	$ (4,742)	$ (3,370)	$ (13,384)	$ (10,027)