Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions			6 Months Ended
	Jul. 20, 2021	Jun. 15, 2018	Jun. 30, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value per share			$ 26.31
Shares granted under Stock incentive plan			7,000
Maximum shares to be earned			113,636
Share based compensation average annual total stock holders return, description			The percentage of the market performance-based equity award to be earned will be determined based on the Company’s annual return on an investment in the Company’s common stock (“TSR”) over the Interim Performance Period and/or over the Full Performance Period as follows: if average annual TSR (1) is below 4%, the percentage of grant earned would be 0%, (2) equals 4%, the percentage of grant earned would be 33.3%, (3) equals 6.5%, the percentage of grant earned would be 66.7%, and (4) equals 10% or above, the percentage of grant earned would be 100%.
Common stock, shares issued			13,558,000	13,658,000
Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted to Company's President		113,636
Common stock, shares issued	113,636
Dividend equivalent rights paid	$ 0.3
Market Performance-Based Equity Award [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted under Stock incentive plan		227,272
Dividend equivalent rights		227,272
2017 Plan [Member] | Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued			7,000
Weighted-average grant date fair value per share			$ 26.31