Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Schedule of Financial Results of Discontinued Operations) (Details)

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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