Quarterly report pursuant to Section 13 or 15(d)

Industry Segments (Schedule of Segment Reporting Information) (Details)

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Industry Segments (Schedule of Segment Reporting Information) (Details) - USD ($)
 3 Months Ended 6 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Segment Reporting Information [Line Items]        
Operating (loss) income $ (299,678) $ (2,124,590) $ (2,084,071) $ (3,136,317)
Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating (loss) income (299,678) (2,124,590) (2,084,071) (3,136,317)
Commercial [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating (loss) income 6,186,211 2,801,740 11,989,804 6,160,921
Research and development [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating (loss) income (3,866,775) (2,888,361) (9,113,156) (5,250,184)
Corporate [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating (loss) income $ (2,619,114) $ (2,037,969) $ (4,960,719) $ (4,047,054)