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Intangible Assets (Schedule of Company's Intangible Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Unamortized intangible assets: |  |  |
Goodwill, Gross Carrying Amount | [1] | $ 16,121 | $ 12,796
Goodwill, Accumulated Amortization | [1] | (227) | (227)
Total intangible assets |  | 23,522 | 18,222
Accumulated Amortization |  | (4,458) | (4,099)
Customer Lists [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 4,613 | 4,288
Accumulated Amortization |  | (3,352) | (3,071)
Patents [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 72 | 72
Accumulated Amortization |  | (19) | (16)
Non-compete Agreements [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 482 | 332
Accumulated Amortization |  | (334) | (326)
Software [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 1,734 | 234
Accumulated Amortization |  | (276) | (234)
Other [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 500 | 500
Accumulated Amortization |  | $ (250) | $ (225)
[1] | Amortization through December 31, 2001 prior to adoption of FASB ASC 350.

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