Operating Segments and Related Information (by Country) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenue, net	$ 34,957	$ 33,365	$ 36,995	$ 32,985	$ 40,233	$ 42,844	$ 41,692	$ 36,783	$ 138,302	$ 161,552	$ 178,268
Long-lived assets	30,517				35,167				30,517	35,167
United States [Member]
Segment Reporting Information [Line Items]
Revenue, net									80,484	88,859	98,871
Long-lived assets	26,281				29,392				26,281	29,392
United Kingdom [Member]
Segment Reporting Information [Line Items]
Revenue, net									19,540	23,817	24,639
Long-lived assets	2,939				4,416				2,939	4,416
Canada [Member]
Segment Reporting Information [Line Items]
Revenue, net									12,388	15,851	19,584
France [Member]
Segment Reporting Information [Line Items]
Revenue, net									6,186	8,508	10,225
Australia [Member]
Segment Reporting Information [Line Items]
Revenue, net									6,111	5,762	4,461
Mexico [Member]
Segment Reporting Information [Line Items]
Revenue, net									4,340	4,653	4,482
Brazil [Member]
Segment Reporting Information [Line Items]
Revenue, net									1,223	3,050	5,090
New Zealand [Member]
Segment Reporting Information [Line Items]
Revenue, net									596	1,353	976
Spain [Member]
Segment Reporting Information [Line Items]
Revenue, net									1,019	1,275	844
Thailand [Member]
Segment Reporting Information [Line Items]
Revenue, net									933	986	971
Hong Kong [Member]
Segment Reporting Information [Line Items]
Revenue, net									864	903	851
Colombia [Member]
Segment Reporting Information [Line Items]
Revenue, net									610	841	752
Other [Member]
Segment Reporting Information [Line Items]
Revenue, net									4,008	5,694	$ 6,522
Long-lived assets	$ 1,297				$ 1,359				$ 1,297	$ 1,359