Share Incentive Plans, Assumptions for Options Granted Under 2006 Plan (Details) - 2006 Plan [Member] - Stock Options [Member] - Exercise Price $3.83 [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share Incentive Plans [Abstract]
Number of options (in shares) | shares	43,693
Exercise price (in dollars per share)	$ 3.83
Number of options exercisable (in shares) | shares	43,693
Remaining lives	7 months 6 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