Income Taxes - Additional Information1 (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Percent	34.90%	34.60%
Liability for Uncertainty in Income Taxes, Noncurrent	$ 0	$ 0
Income Tax Expense (Benefit)	1,162,000	1,782,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 3,386,000	4,885,000
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Assets, Provisional Income Tax Expense		2,300,000
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Increase (Decrease) in Regulatory Assets		$ 1,300,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Federal
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 2,200,000