Capital Stock, Stock Awards, and Stock Options (Options Outstanding and Exercisable) (Details 3) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Shares Outstanding	178,105	183,189
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	4 years 4 months 24 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 619.44	$ 612.16
Options Exercisable, Shares Exercisable	126,264
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	3 years 1 month 6 days
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 697.39
Exercise Price $427 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Low Exercise Price Range	$ 427
Options Outstanding, Shares Outstanding	74,105
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	7 years 8 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 426.86
Options Exercisable, Shares Exercisable	22,599
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	7 years 8 months 12 days
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 426.86
Exercise Price $719 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Low Exercise Price Range	$ 719
Options Outstanding, Shares Outstanding	77,258
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 18 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 719.15
Options Exercisable, Shares Exercisable	77,258
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 18 days
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 719.15
Exercise Price Range of $805-$872 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Shares Outstanding	26,742
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	3 years
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 865.02
Options Exercisable, Shares Exercisable	26,407
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	2 years 10 months 24 days
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 865.26
Exercise Price Range of $805-$872 [Member] | Minimum [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Low Exercise Price Range	805
Exercise Price Range of $805-$872 [Member] | Maximum [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Low Exercise Price Range	$ 872