Income Taxes - Tax Reconciliation (Parenthetical) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Scheduleof Componentsof Income Tax Expense Benefit [Line Items]
Income tax expense (benefit)	$ 1,266,000	$ 1,245,000	$ 522,000
Other Operating Expenses [Member]
Scheduleof Componentsof Income Tax Expense Benefit [Line Items]
Income tax expense (benefit)	(355,000)	757,000	706,000
Gain on Sale of Real Estate [Member]
Scheduleof Componentsof Income Tax Expense Benefit [Line Items]
Income tax expense (benefit)	$ 1,600,000	$ 488,000	$ (184,000)