Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Details 1) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary of FHLB and Other Short Term Borrowings
Average balance during the year		$ 13,550	$ 14,674	$ 17,541
Average interest rate during the year		0.54%	0.27%	0.89%
Maximum month-end balance during the year		$ 23,000	$ 23,500	$ 22,500
Weighted average interest rate at year end		0.59%	0.37%	0.25%
Federal Home Loan Bank Advances
Summary of FHLB and Other Short Term Borrowings
Average balance during the year		$ 2,249	$ 4,082	$ 4,141
Average interest rate during the year	4.01%	0.31%	0.10%	0.07%
Maximum month-end balance during the year		$ 3,608	$ 7,541	$ 5,795
Weighted average interest rate at year end		0.33%	0.11%	0.07%