Changes In Stockholders' Equity (Schedule of Changes in Stockholders' Equity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE	$ 79,106	$ 65,528
BALANCE, shares	7,391,906
Exercise of stock options, net of shares exchanged as payment	$ 183	57
Exercise of stock options, net of shares exchanged as payment, shares	11,075
Tax payments for shares withheld related to stock option exercises	$ (1)
Share-based compensation	353	334
Other comprehensive income (loss), net of tax	(432)	(204)
Net income	3,591	1,441
BALANCE	$ 82,800	67,156
BALANCE, shares	7,402,683
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE	$ 39,052	$ 37,817
BALANCE, shares	7,392,000	7,295,000
Exercise of stock options, net of shares exchanged as payment	$ 183	$ 57
Exercise of stock options, net of shares exchanged as payment, shares	11,000	4,000
Tax payments for shares withheld related to stock option exercises	$ (1)
Tax payments for shares withheld related to stock option exercises (in shares)	0
Share-based compensation	$ 353	$ 334
Other comprehensive income (loss), net of tax	0	0
Net income	0	0
BALANCE	$ 39,587	$ 38,208
BALANCE, shares	7,403,000	7,299,000
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE	$ (1,510)	$ (1,102)
Exercise of stock options, net of shares exchanged as payment	0	0
Tax payments for shares withheld related to stock option exercises	0
Share-based compensation	0	0
Other comprehensive income (loss), net of tax	(432)	(204)
Net income	0	0
BALANCE	(1,942)	(1,306)
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE	41,564	28,813
Exercise of stock options, net of shares exchanged as payment	0	0
Tax payments for shares withheld related to stock option exercises	0
Share-based compensation	0	0
Other comprehensive income (loss), net of tax	0	0
Net income	3,591	1,441
BALANCE	$ 45,155	$ 30,254