Stock-Based Compensation Plans (Summary of Activity Related to Share Based Awards) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
RSUs
Number of Shares
Nonvested, beginning | shares	49,585
Granted | shares	26,854
Vested | shares	(15,002)
Forfeited | shares	(3,615)
Nonvested, ending | shares	57,822
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 41.23
Granted | $ / shares	49.72
Vested | $ / shares	41.43
Forfeited | $ / shares	45.07
Nonvested, ending | $ / shares	$ 44.88
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	3 years 2 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 2,411
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 1,882
Restricted Stock
Number of Shares
Nonvested, beginning | shares	18,971
Granted | shares	25,644
Vested | shares	(24,079)
Forfeited | shares	0
Nonvested, ending | shares	20,536
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 39.80
Granted | $ / shares	45.74
Vested | $ / shares	42.10
Forfeited | $ / shares	0
Nonvested, ending | $ / shares	$ 44.53
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year 7 months 6 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 856
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 580
Management Stock Purchase Plan
Number of Shares
Nonvested, beginning | shares	18,891
Granted | shares	9,314
Vested | shares	(10,796)
Forfeited | shares	(225)
Nonvested, ending | shares	17,184
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 11.64
Granted | $ / shares	12.15
Vested | $ / shares	8.08
Forfeited | $ / shares	14.62
Nonvested, ending | $ / shares	$ 14.12
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	8 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 84
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 71
Performance-based share units
Number of Shares
Nonvested, beginning | shares	51,580
Granted | shares	23,600
Vested | shares	(13,228)
Forfeited | shares	(766)
Nonvested, ending | shares	61,186
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 39.17
Granted | $ / shares	46.96
Vested | $ / shares	41.46
Forfeited | $ / shares	41.48
Nonvested, ending | $ / shares	$ 41.65
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year 8 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 2,548
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 500
DCRP Awards [Member]
Number of Shares
Nonvested, beginning | shares	7,006
Granted | shares	5,377
Vested | shares	(4,001)
Forfeited | shares	0
Nonvested, ending | shares	8,382
Weighted Average Grant Date Fair Value
Nonvested, beginning | $ / shares	$ 40.33
Granted | $ / shares	49.66
Vested | $ / shares	43.40
Forfeited | $ / shares	0
Nonvested, ending | $ / shares	$ 44.85
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	14 years
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value | $	$ 349
Unrecognized Compensation
Nonvested, unrecognized compensation | $	$ 332