Lease Commitments - Supplemental Lease Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Jan. 01, 2019
Balance Sheet
Lease liability	$ 3,314
Lease cost information
Weighted average lease term, in years	7 years 6 months 18 days
Weighted average discount rate	3.28%
Operating cash flows	$ 376
Premises and Equipment Expenses
Income Statement
Operating lease cost	364
Other Assets
Balance Sheet
Lease right-of-use asset	3,274	$ 3,600
Other Liabilities
Balance Sheet
Lease liability	$ 3,314	$ 3,600