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v3.20.4

Summary of Significant Accounting Policies (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Property, Plant and Equipment [Line Items] |  |  |
Depreciation | $ 4,400,000 | $ 3,900,000 |
Amortization expense of capitalized software | 600,000 | 600,000 |
Goodwill | 35,176,000 | 20,923,000 | $ 20,079,000
Impairment of long-lived assets | $ 0 | $ 0 |
Shares paid for tax withholding for share based compensation (in shares) | 32,682 | 64,252 |
Cost of treasury stock repurchased | $ 3,254,000 | $ 4,527,000 |
Treasury stock acquired (in shares) | 47,504 | 32,362 |
Treasury Stock |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost of treasury stock repurchased | $ 3,254,000 | $ 4,527,000 |
Trade names |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Weighted average amortization period (in years) | 12 years |  |
Customer relationships |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Weighted average amortization period (in years) | 11 years |  |
Minimum | Buildings and improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 20 years |  |
Minimum | Machinery and equipment, furniture and fixtures, and vehicles |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 3 years |  |
Minimum | Capitalized software |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 3 years |  |
Maximum | Buildings and improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 40 years |  |
Maximum | Machinery and equipment, furniture and fixtures, and vehicles |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 10 years |  |
Maximum | Capitalized software |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, useful life (in years) | 5 years |  |

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