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Share Incentive Plans, Assumptions for Options Granted Under 2006 Plan (Details) - 2006 Plan [Member] - Stock Options [Member] - Exercise Price $3.83 [Member]
9 Months Ended
Sep. 30, 2022
$ / shares
shares
Share Incentive Plans [Abstract]  
Number of options (in shares) | shares 74,379
Exercise price (in dollars per share) $ 3.83
Number of options exercisable (in shares) | shares 74,379
Remaining lives 1 year 8 months 15 days
Expected life 10 years
Exercise price (in dollars per share) $ 3.83
Risk free interest rate 3.57%
Expected volatility 40.00%
Dividend yield 0.00%
Fair value at grant date (in dollars per share) $ 2.17