Intangible Assets, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 7,551		$ 7,551
Finite-Lived Intangible Assets, Accumulated Amortization	(3,505)		(3,366)
Intangible Assets, Net (Excluding Goodwill)	4,046		4,185
Amortization of Intangible Assets	100	139
Finite-Lived Intangible Asset, Useful Life	7 years 3 months	7 years 6 months 5 days
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	417
Finite-Lived Intangible Assets, Amortization Expense, Year Two	556
Finite-Lived Intangible Assets, Amortization Expense, Year Three	556
Finite-Lived Intangible Assets, Amortization Expense, Year Four	556
Finite-Lived Intangible Assets, Amortization Expense, Year Five	556
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	$ 545
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years	7 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years