Loans Receivable and Allowance for Loan Losses, Summary of Loans Receivable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Summary of loans receivable [Abstract]
Total loans receivable	$ 653,863	$ 613,222
Unearned loan fees	(2,899)	(2,944)
Net loans receivable	650,964	610,278	$ 612,458
Loans pledged as collateral	$ 210,400
Past due period after which accrual of interest on loans is discontinued	90 days
Nonaccrual period of loan considered to be impaired	90 days
Term of historical loss, net charge-off history	4 years
Residential Mortgage [Member]
Summary of loans receivable [Abstract]
Total loans receivable	$ 292,068	260,603
Net loans receivable	$ 289,169	257,659	268,896
Loan to value ratio	80.00%
Commercial [Member]
Summary of loans receivable [Abstract]
Total loans receivable	$ 37,485	46,468
Net loans receivable	37,485	46,468	42,359
Commercial Real Estate [Member]
Summary of loans receivable [Abstract]
Total loans receivable	223,167	195,710
Net loans receivable	223,167	195,710	198,915
Construction, Land Acquisition and Development [Member]
Summary of loans receivable [Abstract]
Total loans receivable	84,164	90,102
Net loans receivable	84,164	90,102	81,340
Home Equity/2nds[Member]
Summary of loans receivable [Abstract]
Total loans receivable	15,861	19,129
Net loans receivable	15,861	19,129	19,739
Consumer [Member]
Summary of loans receivable [Abstract]
Total loans receivable	1,118	1,210
Net loans receivable	$ 1,118	$ 1,210	$ 1,209