Qualified Affordable Housing Project Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Federal Home Loan Banks [Abstract]
Amortization Method Qualified Affordable Housing Project Investments	$ 3,300,000	$ 2,500,000
Qualified Affordable Housing Project Investments, Commitment	1,900,000	1,948,000
Amortization Method Qualified Affordable Housing Project Investments, Amortization	196,000	172,000
Affordable Housing Tax Credits and Other Tax Benefits Expected to Be Received	289,000
Affordable Housing Tax Credits and Other Tax Benefits, Amount	$ 324,000	$ 219,000