Share-Based Compensation Plan - Plan Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 06, 2019
Restricted stock awards
Share-Based Compensation
Number of unvested units outstanding	120,497	128,267
Restricted stock units
Share-Based Compensation
Number of unvested units outstanding	111,160	110,219
2019 Equity Incentive Plan
Share-Based Compensation
Awards authorized				1,100,000
Compensation expense	$ 1.6	$ 1.9	$ 3.1
2019 Equity Incentive Plan | Restricted stock awards
Share-Based Compensation
Number of shares available for grant	779,307