Income Taxes - Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Valuation Allowance, Deferred Tax Asset, Change in Amount	$ 240,000	$ 138,000	$ 864,000
U.S federal net operating loss carryforwards	38,700,000	52,200,000
Net Operating Loss Carryforwards Utilization	12 years
Net Operating Loss Carryforwards Used In The Current Period	13,500,000	3,800,000
non-U.S. net operating loss carryforwards	53,000	125,000
Unrecognized Tax Benefits Gross Including Interest and Penalties		1,900,000	2,300,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		1,600,000	1,700,000
Gross increases in tax positions taken in the current year	309,000	236,000	260,000
Deferred Tax Asset, Reduction in Valuation Allowance, Noncurrent	563,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	181,000	139,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	42,000	22,000	215,000
Estimated change in unrecognized tax benefit in next twelve months, lower bound	400,000
Estimated change in unrecognized tax benefit in next twelve months, upper bound	$ 800,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%	35.00%