Stock-based Compensation Restrictive Stock Awards (Details) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Nonvested Restricted Stock, Weighted Average Grant Date Fair Value [Abstract]
Restricted shares withheld for taxes (shares)	2,000
Restricted stock [Member]
Nonvested Restricted Stock, Number of Shares [Roll Forward]
Nonvested outstanding at the beginning of the period, shares	95,984
Granted, shares	52,863
Vested, shares	(10,696)
Forfeited, shares	(833)
Nonvested outstanding at the end of the period, shares	137,318
Nonvested Restricted Stock, Weighted Average Grant Date Fair Value [Abstract]
Nonvested outstanding at the beginning of the period	$ 131.94
Granted	211.86	$ 185.00
Vested	188.46
Forfeited	171.33
Nonvested outstanding at the end of the period	$ 158.07
Restricted shares withheld for taxes (shares)	2,459