Leases (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Operating Leases [Abstract]
Operating lease ROU assets	$ 4,190,000	$ 4,810,000	$ 4,800,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Interest Receivable and Other Assets	Interest Receivable and Other Assets
Operating lease liability	$ 4,271,000	$ 4,870,000	4,920,000
Operating lease cost	$ 201,000	$ 208,000	$ 833,000
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Interest Payable and Other Liabilities	Interest Payable and Other Liabilities
Minimum [Member]
Operating Leases [Abstract]
Remaining lease term	1 year
Lease extension option term	5 years
Maximum [Member]
Operating Leases [Abstract]
Remaining lease term	10 years
Lease extension option term	10 years