Shareholders' Equity (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	May 18, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Net income (loss)		$ 457	$ (999)	$ 928	$ (1,315)	$ 1,203
Dividends paid				(252)		(504)
Other comprehensive income, net of tax		$ (736)	$ 542	$ (1,980)	$ 956	$ 1,204
Common Stock | Directors
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Stock issued	4,824