Acquired Intangible Assets (Schedule of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Assets eligible for amortization:
Gross Carrying Amount	$ 16,768		$ 16,745
Accumulated Amortization	(2,416)		(1,933)
Unamortized intangible assets:
Goodwill, Gross Carrying Amount	11,817	[1]	11,817	[1]
Goodwill, Accumulated Amortization	(227)	[1]	(227)	[1]
Customer Lists [Member]
Assets eligible for amortization:
Gross Carrying Amount	3,933		3,933
Accumulated Amortization	(1,705)		(1,387)
Patent [Member]
Assets eligible for amortization:
Gross Carrying Amount	23
Accumulated Amortization	(1)
Noncompete Agreements [Member]
Assets eligible for amortization:
Gross Carrying Amount	261		261
Accumulated Amortization	(157)		(105)
Software [Member]
Assets eligible for amortization:
Gross Carrying Amount	234		234
Accumulated Amortization	(234)		(156)
Other [Member]
Assets eligible for amortization:
Gross Carrying Amount	500		500
Accumulated Amortization	$ (92)		$ (58)

[1] Amortization through December 31, 2001 prior to adoption of FASB ASC 350.