Mortgage Loans Held For Sale (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain (Loss) on Sale of Mortgage Loans	$ 247,000	$ 753,000
Mortgages Held-for-sale, Fair Value Disclosure	17,800,000	31,700,000
Real Estate Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group	$ 17,500,000	$ 30,900,000