Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (unaudited)

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CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (unaudited) - USD ($)
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Adoption of accounting standards $ 0 $ 0 $ 0 $ 0 $ 0 $ 0
Balance at Aug. 31, 2018 $ 433 $ 79,218 171,831,293 66,446 (102,524,171) 69,453,219
Balance (in shares) at Aug. 31, 2018 432,513 23,764,098        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises   $ 126 114,725 0 0 114,851
Stock option exercises (in shares)   37,500        
Share-based compensation $ 0 $ 0 161,717 0 0 161,717
Net income (loss) 0 0 0 0 537,947 537,947
Unrealized holding gain (loss) on investments 0 0 0 (53,759) 0 (53,759)
Balance at Feb. 28, 2019 $ 433 $ 79,344 172,107,735 12,687 (101,986,224) 70,213,975
Balance (in shares) at Feb. 28, 2019 432,513 23,801,598        
Balance at Nov. 30, 2018 $ 433 $ 79,302 172,012,936 78,242 (101,890,199) 70,280,714
Balance (in shares) at Nov. 30, 2018 432,513 23,789,098        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises   $ 42 36,558 0 0 36,600
Stock option exercises (in shares)   12,500        
Share-based compensation $ 0 $ 0 58,241 0 0 58,241
Net income (loss) 0 0 0 0 (96,025) (96,025)
Unrealized holding gain (loss) on investments 0 0 0 (65,555) 0 (65,555)
Balance at Feb. 28, 2019 $ 433 $ 79,344 172,107,735 12,687 (101,986,224) 70,213,975
Balance (in shares) at Feb. 28, 2019 432,513 23,801,598        
Balance at Aug. 31, 2019 $ 433 $ 79,427 172,360,413 3,891 (97,713,023) 74,731,141
Balance (in shares) at Aug. 31, 2019 432,513 23,826,598        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises   $ 42 35,358 0 0 35,400
Stock option exercises (in shares)   12,500        
Stock granted for services $ 0 $ 40 149,360 0 0 149,400
Stock granted for services (in shares) 0 12,000        
Share-based compensation $ 0 $ 0 203,794 0 0 203,794
Net income (loss) 0 0 0 0 6,036,383 6,036,383
Unrealized holding gain (loss) on investments 0 0 0 (3,658) 0 (3,658)
Balance at Feb. 29, 2020 $ 433 $ 79,509 172,748,925 233 (91,676,640) 81,152,460
Balance (in shares) at Feb. 29, 2020 432,513 23,851,098        
Balance at Nov. 30, 2019 $ 433 $ 79,427 172,465,766 0 (91,950,558) 80,595,068
Balance (in shares) at Nov. 30, 2019 432,513 23,826,598        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises $ 0 $ 42 35,358 0 0 35,400
Stock option exercises (in shares) 0 12,500        
Stock granted for services $ 0 $ 40 149,360 0 0 149,400
Stock granted for services (in shares) 0 12,000        
Share-based compensation $ 0 $ 0 98,441 0 0 98,441
Net income (loss) 0 0 0 0 273,918 273,918
Unrealized holding gain (loss) on investments 0 0 0 233 0 233
Balance at Feb. 29, 2020 $ 433 $ 79,509 $ 172,748,925 $ 233 $ (91,676,640) $ 81,152,460
Balance (in shares) at Feb. 29, 2020 432,513 23,851,098