Operating Segments and Related Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Revenue	$ 35,291	$ 36,995	$ 66,524	$ 69,980
Income (loss) from continuing operations	(33)	1,824	(98)	(432)
Income tax expense	460	296	664	751
Interest expense (income), net	(12)	(53)	(41)	(95)
EBIT	415	2,067	525	224
Depreciation of property and equipment	1,216	1,294	2,448	2,573
Amortization of intangible assets	395	754	789	1,500
EBITDA	2,026	4,115	3,762	4,297
Other Income (loss)	18	0	28	0
Foreign currency transaction (gains) losses on short-term intercompany balances	196	(416)	(811)	1,276
Transformation severance and related expenses	225	351	759	497
Stock-based compensation	1,035	2,017	1,799	3,149
Adjusted EBITDA	3,500	6,067	5,537	9,219
Recovery Audit Services - Americas [Member]
Segment Reporting Information [Line Items]
Revenue	25,122	25,350	46,689	47,767
EBIT	5,998	6,505	9,996	10,583
Depreciation of property and equipment	936	979	1,928	1,948
Amortization of intangible assets	373	441	745	882
EBITDA	7,307	7,925	12,669	13,413
Foreign currency transaction (gains) losses on short-term intercompany balances	30	(179)	(228)	258
Transformation severance and related expenses	276	108	420	164
Adjusted EBITDA	7,613	7,854	12,861	13,835
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	8,698	9,950	17,947	19,255
EBIT	505	1,796	2,759	1,354
Depreciation of property and equipment	140	153	238	306
Amortization of intangible assets	0	280	0	553
EBITDA	645	2,229	2,997	2,213
Foreign currency transaction (gains) losses on short-term intercompany balances	185	(246)	(561)	1,072
Transformation severance and related expenses	25	203	96	268
Adjusted EBITDA	855	2,186	2,532	3,553
Adjacent Services [Member]
Segment Reporting Information [Line Items]
Revenue	1,471	1,695	1,888	2,958
EBIT	(488)	(1,041)	(1,574)	(1,926)
Depreciation of property and equipment	140	162	282	319
Amortization of intangible assets	22	33	44	65
EBITDA	(326)	(846)	(1,248)	(1,542)
Other Income (loss)	18		28
Foreign currency transaction (gains) losses on short-term intercompany balances	7	1	6	1
Transformation severance and related expenses	0	14	0	30
Adjusted EBITDA	(301)	(831)	(1,214)	(1,511)
Corporate Segment [Member]
Segment Reporting Information [Line Items]
EBIT	(5,600)	(5,193)	(10,656)	(9,787)
EBITDA	(5,600)	(5,193)	(10,656)	(9,787)
Foreign currency transaction (gains) losses on short-term intercompany balances	(26)	8	(28)	(55)
Transformation severance and related expenses	(76)	26	243	35
Stock-based compensation	1,035	2,017	1,799	3,149
Adjusted EBITDA	$ (4,667)	$ (3,142)	$ (8,642)	$ (6,658)