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Summary of Significant Accounting Policies - Share-Based Compensation (Details) - Restricted Stock - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share-based compensation        
Compensation expense before tax $ 524,000 $ 386,000 $ 1,530,000 $ 1,210,000
Compensation expense after tax 375,000 $ 271,000 1,090,000.00 $ 863,000
Unrecognized compensation expense $ 2,920,000   $ 2,920,000