Income Taxes (Details) - USD ($)		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Examination [Line Items]
Net Deferred Tax Liability associated with the Unrecognized Tax Benefit Amounts and Related NOLs and Tax Credit Carryforwards		$ (1,200,000)		$ (1,200,000)
Unrecognized Tax Benefits, Income Tax Penalties Accrued		$ 0		$ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent		6.20%	6.20%
Effective Income Tax Rate Reconciliation, Other Regulatory Items, Percent	[1]	(19.60%)	(0.40%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Percent		(12.80%)	0.00%
Regulatory difference - tax credits and tax credit and NOL allowances (net)		(1.60%)	(1.50%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		(0.60%)	0.70%
Effective Income Tax Rate Reconciliation, Percent		(6.90%)	26.40%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent		0.50%	0.40%
Tax Audits [Abstract]
Federal income tax adjustment		$ 0
State Jurisdiction (Wisconsin)
Tax Audits [Abstract]
Potential Tax Adjustments		$ 0

[1]     Regulatory differences for income tax primarily relates to the credit of excess deferred taxes to customers through the average rate assumption method. Income tax benefits associated with the credit of excess deferred credits are offset by corresponding revenue reductions.