Significant Accounting Policies, Loans & Leases and Allowance for Credit Losses (Details)	3 Months Ended
	Mar. 31, 2021 Category Component Factor
Loans & Leases [Abstract]
Consecutive months of payments to demonstrate sustained period of performance	6 months
Allowance for Credit Losses [Abstract]
Number of primary components of overall allowance for credit losses | Component	3
Number of categories into which risk ratings are grouped | Category	5
Minimum [Member]
Loans & Leases [Abstract]
Period after which loans are placed on non accrual status	90 days
Agricultural Real Estate [Member]
Allowance for Credit Losses [Abstract]
Number of risk factors on loans	2
Agricultural [Member]
Allowance for Credit Losses [Abstract]
Number of risk factors on loans	2