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Acquired Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | $ 23,205 | $ 18,222
Accumulated Amortization |  | (4,662) | (4,099)
Unamortized intangible assets: |  |  |
Goodwill, Gross Carrying Amount | [1] | 14,489 | 12,796
Goodwill, Accumulated Amortization | [1] | (227) | (227)
Customer Lists [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 4,778 | 4,288
Accumulated Amortization |  | (3,463) | (3,071)
Patents [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 72 | 72
Accumulated Amortization |  | (20) | (16)
Noncompete Agreements [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 332 | 332
Accumulated Amortization |  | (332) | (326)
Software [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 2,844 | 234
Accumulated Amortization |  | (358) | (234)
Trade Names [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 190 |
Accumulated Amortization |  | (3) |
Other Intangible Assets [Member] |  |  |
Assets eligible for amortization: |  |  |
Gross Carrying Amount |  | 500 | 500
Accumulated Amortization |  | $ (259) | $ (225)
[1] | Amortization through December 31, 2001 prior to adoption of FASB ASC 350.

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