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Consolidated Statements of Changes in Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Treasury Stock
Deferred Compensation
Total
Balance at Oct. 31, 2019 $ 19 $ 1,151,454 $ (1,075,089) $ (647) $ (466) $ 466 $ 75,737
Balance at (in shares) at Oct. 31, 2019 193,608,684            
Sale of common stock, net of fees $ 1 3,501         3,502
Sale of common stock, net of fees (in shares) 7,938,228            
Orion warrant exercises $ 1 25,993         25,994
Orion warrant exercises (in shares) 9,396,320            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   (6)         (6)
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 2,585            
Share based compensation   488         488
Preferred dividends - Series B   (931)         (931)
Effect of foreign currency translation       (49)     (49)
Adjustment for deferred compensation         29    
Adjustment for deferred compensation (in shares) 20,012            
Adjustment for deferred compensation           (29)  
Net loss     (40,151)       (40,151)
Balance at Jan. 31, 2020 $ 21 1,180,499 (1,115,240) (696) (437) 437 64,584
Balance at (in shares) at Jan. 31, 2020 210,965,829            
Balance at Oct. 31, 2019 $ 19 1,151,454 (1,075,089) (647) (466) 466 75,737
Balance at (in shares) at Oct. 31, 2019 193,608,684            
Effect of foreign currency translation             (230)
Net loss             (70,251)
Balance at Jul. 31, 2020 $ 24 1,242,518 (1,145,340) (877) (403) 403 96,325
Balance at (in shares) at Jul. 31, 2020 236,172,797            
Balance at Jan. 31, 2020 $ 21 1,180,499 (1,115,240) (696) (437) 437 64,584
Balance at (in shares) at Jan. 31, 2020 210,965,829            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   (32)         (32)
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 86,572            
Share based compensation   375         375
Preferred dividends - Series B   (800)         (800)
Effect of foreign currency translation       (42)     (42)
Net loss     (14,769)       (14,769)
Balance at Apr. 30, 2020 $ 21 1,180,042 (1,130,009) (738) (437) 437 49,316
Balance at (in shares) at Apr. 30, 2020 211,052,401            
Sale of common stock, net of fees $ 3 62,328         62,331
Sale of common stock, net of fees (in shares) 25,144,704            
Common stock issued, non-employee compensation   112         112
Common stock issued, non-employee compensation, (in shares) (8,272)            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   4         4
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 2,150            
Share based compensation   398         398
Reclassification of value of share based compensation upon approval of authorized shares for grant   434         434
Preferred dividends - Series B   (800)         (800)
Effect of foreign currency translation       (139)     (139)
Adjustment for deferred compensation         34 (34)  
Adjustment for deferred compensation (in shares) (18,186)            
Net loss     (15,331)       (15,331)
Balance at Jul. 31, 2020 $ 24 1,242,518 (1,145,340) (877) (403) 403 96,325
Balance at (in shares) at Jul. 31, 2020 236,172,797            
Balance at Oct. 31, 2020 $ 29 1,359,454 (1,164,196) (739) (432) 432 $ 194,548
Balance at (in shares) at Oct. 31, 2020 294,706,758           294,706,758
Sale of common stock, net of fees $ 3 156,363         $ 156,366
Sale of common stock, net of fees (in shares) 25,000,000            
Orion warrant exercises   21,824         21,824
Orion warrant exercises (in shares) 2,700,000            
Common stock issued, non-employee compensation   45         45
Common stock issued, non-employee compensation, (in shares) 2,734            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   8         8
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 4,521            
Share based compensation   1,417         1,417
Preferred dividends - Series B   (800)         (800)
Effect of foreign currency translation       58     58
Adjustment for deferred compensation         (30)    
Adjustment for deferred compensation (in shares) (1,669)            
Adjustment for deferred compensation           30  
Release of a share reserve (48)            
Net loss     (45,960)       (45,960)
Balance at Jan. 31, 2021 $ 32 1,538,311 (1,210,156) (681) (462) 462 327,506
Balance at (in shares) at Jan. 31, 2021 322,412,296            
Balance at Oct. 31, 2020 $ 29 1,359,454 (1,164,196) (739) (432) 432 $ 194,548
Balance at (in shares) at Oct. 31, 2020 294,706,758           294,706,758
Effect of foreign currency translation             $ (8)
Net loss             (76,874)
Balance at Jul. 31, 2021 $ 37 1,908,011 (1,241,070) (747) (544) 544 $ 666,231
Balance at (in shares) at Jul. 31, 2021 366,483,758           366,483,758
Balance at Jan. 31, 2021 $ 32 1,538,311 (1,210,156) (681) (462) 462 $ 327,506
Balance at (in shares) at Jan. 31, 2021 322,412,296            
Sale of common stock, net of fees   5         5
Orion warrant exercises   269         269
Orion warrant exercises (in shares) 14,026            
Common stock issued, non-employee compensation   55         55
Common stock issued, non-employee compensation, (in shares) 5,456            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   (262)         (262)
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 64,782            
Share based compensation   1,253         1,253
Preferred dividends - Series B   (800)         (800)
Effect of foreign currency translation       (60)     (60)
Adjustment for deferred compensation         (41)    
Adjustment for deferred compensation (in shares) (3,756)            
Adjustment for deferred compensation           41  
Net loss     (18,917)       (18,917)
Balance at Apr. 30, 2021 $ 32 1,538,831 (1,229,073) (741) (503) 503 309,049
Balance at (in shares) at Apr. 30, 2021 322,492,804            
Sale of common stock, net of fees $ 5 368,949         368,954
Sale of common stock, net of fees (in shares) 43,978,999            
Common stock issued, non-employee compensation   95         95
Common stock issued, non-employee compensation, (in shares) 12,985            
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards   33         33
Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards, (in shares) 4,828            
Share based compensation   903         903
Preferred dividends - Series B   (800)         (800)
Effect of foreign currency translation       (6)     (6)
Adjustment for deferred compensation         (41) 41  
Adjustment for deferred compensation (in shares) (5,858)            
Net loss     (11,997)       (11,997)
Balance at Jul. 31, 2021 $ 37 $ 1,908,011 $ (1,241,070) $ (747) $ (544) $ 544 $ 666,231
Balance at (in shares) at Jul. 31, 2021 366,483,758           366,483,758