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Number of shares issued under share-based payment arrangement.

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Shareholders' Equity - 2012 Long-Term Incentive Plan (Details) - USD ($)			3 Months Ended
	Feb. 16, 2023	Aug. 15, 2022	Mar. 31, 2023	Mar. 31, 2022
Shareholders' Equity
Stock-based compensation expense related to the restrictive share awards			$ 55,000	$ 25,000
Restricted share awards
Shareholders' Equity
Compensation expense not yet recognized			$ 177,000
2012 Long-Term Incentive Plan \| Non-employee directors
Shareholders' Equity
Number of restricted stock issued	725	11,345
Compensation expense not yet recognized	$ 7,808	$ 125,000