Employee Benefit Plans (Narrative) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) plan $ / shares shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost recognized	$ 1,600	$ 1,300	$ 1,100
Number of stock option plans | plan	1
Deferred tax benefit from stock options exercised	$ 209	$ 13	18
Shares vested (in shares) | shares	0	0
Stock Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Options, exercises in period, intrinsic value	$ 806	$ 233
Options, outstanding, intrinsic value	495
Options, exercisable, intrinsic value	495
Proceeds from options exercised	397
Stock Appreciation Rights (SARs) [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	$ 93	$ 256	51
Granted (in shares) | shares		22,000
Exercise of options | shares	19,000	34,000
Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	$ 1,300	$ 693	$ 482
Unrecognized compensation cost	$ 1,000
Unrecognized compensation costs, period for recognition	1 year 9 months 25 days
Grant-date fair value	$ 824
Vested (in shares) | shares	34,146
Nonvested, beginning of period (in shares) | shares	144,367
Nonvested, beginning balance (in dollars per share) | $ / shares	$ 19.49
2015 Stock Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares	14,505
Rights available for grant (in shares) | shares	1,766,245
Cornerstone Non-Qualified Plan Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares	17,540
401 (k) Matching Range One [Member] | Deferred Salary Reduction Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of match	100.00%
Employer matching contribution, percent of employees gross pay	3.00%
401 (k) Matching Range Two [Member] | Deferred Salary Reduction Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of match	50.00%
Employer matching contribution, percent of employees gross pay	2.00%