Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Intangible assets
Gross Carrying Amount	$ 6,360		$ 6,360		$ 7,187
Accumulated Amortization	(4,385)		(4,385)		(4,333)
Net Book Value	1,975		1,975		2,854
Amortization expense related to intangibles	208	$ 249	694	$ 748
Goodwill
Goodwill, beginning of period			3,624
Sale during the period			(1,520)
Foreign currency exchange rate effect			(180)
Goodwill, end of period	1,924		1,924		$ 3,624
Gain on sale of business			2,997	$ 0
Australian Business
Goodwill
Goodwill, end of period	1,500		1,500
Carrying amount of the intangible assets	200		$ 200
Trademarks
Intangible assets
Weighted-Average Amortization Period			5 years		5 years
Gross Carrying Amount	1,900		$ 1,900		$ 2,001
Accumulated Amortization	(823)		(823)		(604)
Net Book Value	1,077		$ 1,077		$ 1,397
Customer relationships
Intangible assets
Weighted-Average Amortization Period			5 years		5 years
Gross Carrying Amount	1,300		$ 1,300		$ 1,300
Accumulated Amortization	(563)		(563)		(368)
Net Book Value	737		737		932
Non-compete agreements
Intangible assets
Gross Carrying Amount	100		100		108
Accumulated Amortization	(72)		(72)		(52)
Net Book Value	28		$ 28		$ 56
Non-compete agreements | Minimum
Intangible assets
Weighted-Average Amortization Period			3 years		3 years
Non-compete agreements | Maximum
Intangible assets
Weighted-Average Amortization Period			5 years		5 years
Technology
Intangible assets
Weighted-Average Amortization Period					5 years
Gross Carrying Amount					$ 718
Accumulated Amortization					(467)
Net Book Value					$ 251
Other intangibles
Intangible assets
Weighted-Average Amortization Period			3 years		3 years
Gross Carrying Amount	373		$ 373		$ 373
Accumulated Amortization	(242)		(242)		(158)
Net Book Value	131		$ 131		$ 215
Domain names
Intangible assets
Weighted-Average Amortization Period			5 years		5 years
Gross Carrying Amount	2,687		$ 2,687		$ 2,687
Accumulated Amortization	(2,685)		(2,685)		(2,684)
Net Book Value	$ 2		2		$ 3
Other income (expense), net | Australian Business
Goodwill
Gain on sale of business			$ 3,000