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