Operating Segments and Related Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment information
Revenue	$ 33,569	$ 31,233
Net loss from continuing operations	(1,847)	(65)
Income tax expense	627	204
Interest expense (income), net	37	(29)
EBIT	(1,183)	110
Depreciation of property and equipment	1,220	1,232
Amortization of intangible assets	722	394
EBITDA	759	1,736
Other expense (income)	(199)	10
Foreign currency transaction (gains) losses on short-term intercompany balances	(552)	(1,007)
Transformation severance and related expenses	583	525
Stock-based compensation	1,566	773
Adjusted EBITDA	2,157	2,037
Recovery Audit Services - Americas [Member]
Segment information
Revenue	24,383	21,567
EBIT	5,986	3,997
Depreciation of property and equipment	910	992
Amortization of intangible assets	329	372
EBITDA	7,225	5,361
Other expense (income)	0
Foreign currency transaction (gains) losses on short-term intercompany balances	(163)	(257)
Transformation severance and related expenses	76	144
Stock-based compensation	0	0
Adjusted EBITDA	7,138	5,248
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment information
Revenue	7,831	9,249
EBIT	410	2,254
Depreciation of property and equipment	140	98
Amortization of intangible assets	0	0
EBITDA	550	2,352
Other expense (income)	0
Foreign currency transaction (gains) losses on short-term intercompany balances	(252)	(746)
Transformation severance and related expenses	138	71
Stock-based compensation	0	0
Adjusted EBITDA	436	1,677
Adjacent Services [Member]
Segment information
Revenue	1,355	417
EBIT	(1,740)	(1,086)
Depreciation of property and equipment	170	142
Amortization of intangible assets	393	22
EBITDA	(1,177)	(922)
Other expense (income)	(199)	10
Foreign currency transaction (gains) losses on short-term intercompany balances	(3)	(1)
Transformation severance and related expenses	0	0
Stock-based compensation	0	0
Adjusted EBITDA	(1,379)	(913)
Corporate Support [Member]
Segment information
EBIT	(5,839)	(5,055)
Depreciation of property and equipment	0	0
Amortization of intangible assets	0	0
EBITDA	(5,839)	(5,055)
Other expense (income)	0
Foreign currency transaction (gains) losses on short-term intercompany balances	(134)	(3)
Transformation severance and related expenses	369	310
Stock-based compensation	1,566	773
Adjusted EBITDA	$ (4,038)	$ (3,975)