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Shareholders' Equity - Stock Option Activity, Narrative (Details) - Stock option - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Share Compensation Plan    
Unrecognized stock based compensation to be recognized over a period $ 0 $ 0
Aggregate intrinsic value of options outstanding $ 21,700 $ 112,000
Granted (in shares) 0 0