Discontinued Operations (Schedule of Financial Results of Discontinued Operations) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Discontinued Operations [Abstract]
Sales		$ 3,025,000
Cost of sales		2,050,000
Selling, general and administrative expenses		500,000
Restructuring expenses		320,000
Gain on sale of assets		(2,161,000)
Operating income before income taxes		2,316,000
Income tax expense		3,000
Income (loss) from discontinued operations		$ 2,313,352