Pension And Profit Sharing - Changes In Plan Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Changes in plan assets:
Fair value of plan assets at beginning of year	$ 1,028,649	$ 1,013,831
Actual return on plan assets	40,560	201,148
Employer contribution	222,857	14,413
Benefits and plan expenses paid	(203,596)	(200,743)
Settlements	$ (1,088,470)
Fair value of plan assets at end of year		1,028,649
Funded status:		$ (44,667)