Stock-Based Compensation - Options (Details) - 2018 Plan - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 18, 2018	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Unrecognized compensation expense
Unrecognized compensation expense		$ 0.3		$ 0.3
Reversed compensation expense		0.6		0.6
Selling, general and administrative expense
Unrecognized compensation expense
Total compensation expense		$ 0.2	$ 0.4	$ 0.6	$ 1.3
Stock options
Stock-based compensation
Minimum fair market value per share of underlying stock used to determine option grant price, as a percent	100.00%
Expiration of stock options	10 years
Outstanding
Outstanding Balance at beginning of the year (in shares)				72,265
Forfeited (in shares)				(1,497)
Outstanding Balance at the end of the year (in shares)		70,768		70,768		72,265
Exercisable (in shares)		51,967		51,967
Weighted average Grant Date fair Value
Outstanding balance at the beginning of the period				$ 112.60
Forfeited				120.23
Outstanding balance at the end of the period		$ 112.44		112.44		$ 112.60
Weighted Average Exercise Price
Outstanding Balance at the beginning of the year				235.69
Outstanding Balance at the end of the year (in shares)		$ 234.73		$ 234.73		$ 235.69
Additional information
Average Remaining Vesting Period				3 months 7 days		8 months 8 days
Aggregate Intrinsic Value		$ 0.0		$ 0.0
Stock options | Minimum
Stock-based compensation
Vesting period				2 years
Stock options | Maximum
Stock-based compensation
Vesting period				4 years