Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Allowance for doubtful accounts	$ 381	$ 394
Accrued liabilities	1,596	1,266
Net operating loss carry-forwards	25,563	31,325
Fixed assets	0	16
Intangible assets	0	0
Share-based compensation expense	3,225	2,422
Other	1,191	613
Total gross deferred tax assets	31,956	36,036
Valuation allowance	(4,656)	(5,427)
Deferred tax assets, net of valuation allowance	27,300	30,609
Deferred tax liabilities:
Fixed assets	(114)	0
Tax deductible goodwill	(7,698)	(9,147)
Unremitted foreign earnings	(20)	0
Total gross deferred tax liabilities	(7,832)	(9,147)
Net deferred tax assets	$ 19,468	$ 21,462