Regulatory Capital Requirements (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
FHLB available credit	$ 104,300
Tier One Risk Based Capital	158,795	$ 148,072
Repayment of outstanding Cumulative Preferred Stock	0	20,000
Unsecured Debt [Member]
Line of credit facility, current borrowing capacity	85,000
Secured Debt [Member]
Line of credit facility, current borrowing capacity	4,400
TPS Debentures [Member]
Tier One Risk Based Capital	30,900
Parent Company [Member]
Repayment of outstanding Cumulative Preferred Stock	$ 0	$ 20,000