Share-Based Compensation - Stock option activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Shares
Options outstanding at the beginning of the period (in shares)	15,000
Granted (in shares)	0	0	0
Expired (in shares)	(2,000)
Options outstanding at the end of the period (in shares)	13,000	15,000
Options exercisable at the end of the period (in shares)	13,000
Number of unvested options at end of year	0	0	0
Weighted Average Exercise Price
Options outstanding at the beginning of the period (in dollars per share)	$ 317.82
Expired (in dollars per share)	537.45
Options outstanding at the end of the period (in dollars per share)	286.54	$ 317.82
Options exercisable at the end of the period (in dollars per share)	$ 286.54
Weighted Average Remaining Contractual Term
Options outstanding at the end of the period	2 years 10 months 24 days
Options exercisable at the end of the period	2 years 10 months 24 days