Borrowings (Details 1) - Federal Home Loan Bank Advances [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Maximum outstanding during the year FHLB advances	$ 12,200	$ 14,000	$ 18,000
Balance outstanding at end of year FHLB advances	2,400	6,000	14,000
Average amount outstanding during the year FHLB advances	$ 5,161	$ 9,027	$ 15,468
Average interest rate during the year FHLB advances	1.09%	1.88%	2.16%
Average interest rate at end of year FHLB advances	1.46%	1.58%	2.07%