Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Allowance for doubtful accounts	$ 284	$ 149
Accrued liabilities	1,473	832
Net operating loss carry-forwards	34,473	37,426
Fixed assets	83	111
Intangible assets	744	2,006
Share-based compensation expense	1,566	1,143
Other	286us-gaap_DeferredTaxAssetsOther	184us-gaap_DeferredTaxAssetsOther
Total gross deferred tax assets	38,909us-gaap_DeferredTaxAssetsGross	41,851us-gaap_DeferredTaxAssetsGross
Valuation allowance	(6,015)	(6,356)
Deferred tax assets, net of valuation allowance	32,894us-gaap_DeferredTaxAssetsNet	35,495us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:
Tax deductible goodwill		(843)
Total gross deferred tax liabilities		(843)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax assets	$ 32,894us-gaap_DeferredTaxLiabilities	$ 34,652us-gaap_DeferredTaxLiabilities

Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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