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Goodwill and Intangibles Intangibles by Major Asset Class (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of Intangible Assets | $ 487,000 | $ 404,000 |  |
Finite-Lived Intangible Assets, Gross | 17,420,000 |  |  | $ 17,420,000
Finite-Lived Intangible Assets, Accumulated Amortization | (2,494,000) |  |  | (2,007,000)
Finite-Lived Intangible Assets, Net | $ 14,926,000 |  |  | 15,413,000
Trade Names [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 25 years |  | 25 years |
Finite-Lived Intangible Assets, Gross | $ 250,000 |  |  | 250,000
Finite-Lived Intangible Assets, Accumulated Amortization | (40,000) |  |  | (37,000)
Finite-Lived Intangible Assets, Net | $ 210,000 |  |  | 213,000
Trademarks [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  | 10 years |
Finite-Lived Intangible Assets, Gross | $ 1,610,000 |  |  | 1,610,000
Finite-Lived Intangible Assets, Accumulated Amortization | (195,000) |  |  | (86,000)
Finite-Lived Intangible Assets, Net | $ 1,415,000 |  |  | 1,524,000
Noncompete Agreements [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 5 years |  | 5 years |
Finite-Lived Intangible Assets, Gross | $ 1,810,000 |  |  | 1,810,000
Finite-Lived Intangible Assets, Accumulated Amortization | (436,000) |  |  | (360,000)
Finite-Lived Intangible Assets, Net | $ 1,374,000 |  |  | 1,450,000
Developed Technology Rights [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 7 years |  | 7 years |
Finite-Lived Intangible Assets, Gross | $ 4,420,000 |  |  | 4,420,000
Finite-Lived Intangible Assets, Accumulated Amortization | (765,000) |  |  | (605,000)
Finite-Lived Intangible Assets, Net | 3,655,000 |  |  | 3,815,000
Customer Relationships [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Gross | 9,330,000 |  |  | 9,330,000
Finite-Lived Intangible Assets, Accumulated Amortization | (1,058,000) |  |  | (919,000)
Finite-Lived Intangible Assets, Net | $ 8,272,000 |  |  | $ 8,411,000
Minimum [Member] | Customer Relationships [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years | 10 years |  |
Maximum [Member] | Customer Relationships [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 12 years | 12 years |  |

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