v3.21.2
Consolidated Statements of Operations - USD ($)
shares in Thousands
3 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Income Statement [Abstract]    
Product revenue $ 41,000 $ 0
Total revenues 41,000  
Cost of goods sold 1,000  
Total cost of goods sold 1,000  
Gross Margin 40,000  
Operating expenses:    
General and administrative 7,617,000 9,875,000
Research and development 13,784,000 15,188,000
Amortization and depreciation 276,000 505,000
Total operating expenses 21,677,000 25,568,000
Operating loss (21,637,000) (25,568,000)
Other income (expense):    
Loss on extinguishment of convertible notes (4,651,000)  
Legal settlement (1,941,000)  
Interest expense:    
Finance charges (35,000) (10,000)
Amortization of discount on convertible notes (952,000) (1,339,000)
Amortization of debt issuance costs (28,000) (4,000)
Inducement interest expense (9,000) (3,345,000)
Interest on convertible notes payable (1,686,000) (566,000)
Total interest expense (2,710,000) (5,264,000)
Loss before income taxes (30,939,000) (30,832,000)
Income tax benefit 0 0
Net loss $ (30,939,000) $ (30,832,000)
Basic and diluted loss per share $ (0.05) $ (0.06)
Basic and diluted weighted average common shares outstanding 632,597 555,531

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