Loans and Leases - Interest Income Recognized on Impaired Loans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Receivables [Abstract]
Impaired Financing Receivable, Interest Income, Accrual Method, Total	$ 527,000	[1]	$ 693,000	[1]	$ 784,000
Interest income recognized on a cash basis on impaired loans	$ 0		$ 0		$ 0

[1] Interest income is recognized on performing balances on a regular accrual basis.