Share-Based Compensation (Stock Options) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock option exercises	$ 865	$ 553	$ 651
Stock option exercises	48,075
Weighted-average grant-date fair value of stock options granted	$ 10.33
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Award expiration period	10 years
Proceeds from stock option exercises	$ 700	300
Stock option exercises			0
Closing stock price	$ 16.21
Aggregate intrinsic value of outstanding stock options	$ 1,000
Aggregate intrinsic value of exercisable stock options	700
Aggregate intrinsic value of stock options exercised	600	100
Total fair value of stock option awards vested	800	1,200	$ 1,200
Share-based compensation expense	800	$ 1,200	$ 1,300
Unrecognized share-based compensation expense	$ 2,200
Unrecognized share-based compensation expense, weighted-average period of recognition	2 years 9 months 18 days
Weighted-average grant-date fair value of stock options granted	$ 10.12	$ 9.60	$ 5.85
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized				568,357
Number of shares available for grant	544,959
Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant	0