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Intangible Assets (Schedule of Company's Intangible Assets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Unamortized intangible assets:    
Goodwill, Gross Carrying Amount [1] $ 11,817 $ 11,817
Goodwill, Accumulated Amortization [1] (227) (227)
Total intangible assets 16,817 16,768
Accumulated Amortization (2,720) (2,416)
Customer Lists [Member]    
Assets eligible for amortization:    
Gross Carrying Amount 3,933 3,933
Accumulated Amortization (1,944) (1,705)
Patents [Member]    
Assets eligible for amortization:    
Gross Carrying Amount 72 23
Accumulated Amortization (3) (1)
Non-compete Agreements [Member]    
Assets eligible for amortization:    
Gross Carrying Amount 261 261
Accumulated Amortization (196) (157)
Software [Member]    
Assets eligible for amortization:    
Gross Carrying Amount 234 234
Accumulated Amortization (234) (234)
Other [Member]    
Assets eligible for amortization:    
Gross Carrying Amount 500 500
Accumulated Amortization $ (116) $ (92)
[1] Amortization through December 31, 2001 prior to adoption of FASB ASC 350.