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Summary of Significant Accounting Policies (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019 | Dec. 31, 2016
Accounting Policies [Abstract] |  |  |  |
Depreciation | $ 4,800,000 | $ 4,700,000 |  |
Amortization expense of capitalized software | $ 1,100,000 | $ 1,600,000 |  |
Treasury stock, shares acquired | 16,512 | 968 |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use | $ 200,000 |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | 329,000 | $ 178,000 | $ (1,900,000) |
non-cash purchase of assets | 200,000 | 300,000 |  |
Payments for Repurchase of Common Stock | (523,000) | (20,000) |  |
Goodwill | 20,079,000 | 19,614,000 |  | $ 5,520,000
Treasury Stock, Value, Acquired, Cost Method | $ (523,000) | (20,000) |  |
Buildings and improvements | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 20 years |  |  |
Buildings and improvements | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 40 years |  |  |
Machinery and equipment, furniture and fixtures, and vehicles | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |
Machinery and equipment, furniture and fixtures, and vehicles | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 10 years |  |  |
Capitalized software | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |
Capitalized software | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |
Treasury Stock |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ (523,000) | $ (20,000) |  |
Stock Compensation Plan [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 46,067 | 80,000 |  |
Trade Names [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period | 15 years |  |  |
Customer Relationships [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period | 11 years |  |  |

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