Income Taxes (Details) - USD ($)		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax Examination [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties Accrued		$ 0		$ 0
Net Deferred Tax Liability associated with the Unrecognized Tax Benefit Amounts and Related NOLs and Tax Credit Carryforwards		$ (1,200,000)		$ (1,200,000)
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]	(22.00%)	(0.50%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Percent		(14.70%)	0.00%
Regulatory difference - tax credits and tax credit and NOL allowances (net)		(1.70%)	(0.80%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		0.30%	0.30%
Effective Income Tax Rate Reconciliation, Percent		(10.90%)	26.20%
Internal Revenue Service (IRS)
Tax Audits [Abstract]
Potential Tax Adjustments		$ 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.