General form of registration statement for all companies including face-amount certificate companies

Consolidated Statements of Changes Stockholders' Deficit

v3.24.0.1
Consolidated Statements of Changes Stockholders' Deficit - USD ($)
shares in Thousands, $ in Thousands
Preferred Stock
Series C Convertible Preferred Stock
Preferred Stock
Common Stock
Series C Convertible Preferred Stock
Common Stock
Private Warrant Exchange
Common Stock
Private Equity Offering
Common Stock
Treasury Stock
Additional Paid-in Capital
Series C Convertible Preferred Stock
Additional Paid-in Capital
Private Warrant Exchange
Additional Paid-in Capital
Private Equity Offering
Additional Paid-in Capital
Accumulated Deficit
Private Warrant Exchange
Private Equity Offering
Total
Beginning balance at May. 31, 2021           $ 626         $ 532,031 $ (553,675)     $ (21,018)
Beginning balance (shares) at May. 31, 2021   96       626,123 443                
Issuance of stock for convertible note repayment           $ 37         68,344       68,381
Issuance of stock for convertible note repayment (in shares)           37,110                  
Loss on induced conversion                             37,381
Issuance of legal settlement, warrants                     2,863       2,863
Stock option exercises           $ 1         389       390
Stock option exercises (in shares)           510                  
Stock issued for compensation and tendered for income tax           $ 2         666       668
Stock issued for compensation and tendered for income tax (in shares)           2,582                  
Stock issued for private offerings         $ 38         $ 46,473       $ 46,511  
Stock issued for private offerings (in shares)         38,035                    
Offering costs related to stock issuance                     (5,316)       (5,316)
Conversion of preferred stock to common stock           $ 3         (3)        
Conversion of preferred stock to common stock (in shares)   (61)       3,200                  
Warrant exercises       $ 8   $ 2     $ 5,382   1,034   $ 5,390   1,036
Warrant exercises (in shares)       7,920   1,642                  
Inducement interest expense related to private warrant exchange           $ 2         6,689       6,691
Inducement interest expense related to private warrant exchange (in shares)           2,293                  
Preferred stock dividends accrued and paid in common stock Preferred stock dividends accrued and paid in common stock upon conversion           $ 1         305 (1,636)     (1,330)
Preferred stock dividends accrued and paid in common stock Preferred stock dividends accrued and paid in common stock upon conversion (in shares)           (613)                  
Stock-based compensation                     5,571       5,571
Reclassification of warrants from liability to equity classified                     6,585       6,585
Net loss                       (210,820)     (210,820)
Ending balance at May. 31, 2022           $ 720         671,013 (766,131)     (94,398)
Ending balance (shares) at May. 31, 2022   35       720,028 443                
Stock issued for compensation           $ 1         344       345
Stock issued for compensation (in shares)           879                  
Stock issued for private offerings         $ 85         17,459       17,544  
Stock issued for private offerings (in shares)         85,378                    
Issuance costs related to stock issued for private offerings                     (6,289)       (6,289)
Conversion of preferred stock to common stock     $ 1         $ (1)              
Conversion of preferred stock to common stock (in shares) (1)   1,136                        
Warrant exercises           $ 1         263       264
Warrant exercises (in shares)           657                  
Deemed dividend paid in common stock due to down round provision, recorded in additional paid-in capital           $ 5         (5)        
Deemed dividend paid in common stock due to down round provision recorded in additional paid-in capital (in shares)           4,620                  
Dividends accrued on Series C and D convertible preferred stock                     (384)       (384)
Reclassification of warrants from liability to equity classified                     8,601       8,601
Stock-based compensation                     996       996
Reclassification of prior period preferred stock dividends                     (4,265) 4,265      
Net loss                       (20,991)     (20,991)
Ending balance at Aug. 31, 2022           $ 813         687,732 (782,857)     (94,312)
Ending balance (shares) at Aug. 31, 2022   34       812,698 443                
Beginning balance at May. 31, 2022           $ 720         671,013 (766,131)     (94,398)
Beginning balance (shares) at May. 31, 2022   35       720,028 443                
Loss on induced conversion                             638
Net loss                             (47,486)
Ending balance at Nov. 30, 2022           $ 825         692,558 (809,352)     (115,969)
Ending balance (shares) at Nov. 30, 2022   34       825,279 443                
Beginning balance at May. 31, 2022           $ 720         671,013 (766,131)     (94,398)
Beginning balance (shares) at May. 31, 2022   35       720,028 443                
Issuance of stock for convertible note repayment           $ 17         3,983       4,000
Issuance of stock for convertible note repayment (in shares)           17,260                  
Loss on induced conversion                     5,312       5,312
Warrants issued in note offering                     114       114
Stock issued for compensation           $ 3         982       985
Stock issued for compensation (in shares)           2,751                  
Exercise of warrants, net of issuance costs (in shares)                         9,700    
Make-whole shares related to private warrant exchange (in shares)           23                  
Stock issued for private offerings         $ 157         $ 37,067       $ 37,224  
Stock issued for private offerings (in shares)         157,390               500 4,600  
Offering costs related to stock issuance                     (1,760)       (1,760)
Conversion of preferred stock to common stock           $ 1         (1)        
Conversion of preferred stock to common stock (in shares)   (1)       1,136                  
Warrant exercises       $ 13   $ 2     $ 2,794   437   $ 2,807   439
Warrant exercises (in shares)       13,094   1,898                  
Deemed dividend paid in common stock due to down round provision, recorded in additional paid-in capital           $ (6)         6        
Deemed dividend paid in common stock due to down round provision recorded in additional paid-in capital (in shares)           5,154                  
Preferred stock dividends accrued and paid in common stock Preferred stock dividends accrued and paid in common stock upon conversion                     (1,331)       (1,331)
Preferred stock dividends accrued and paid in common stock Preferred stock dividends accrued and paid in common stock upon conversion (in shares)           (319)                  
Reclassification of warrants from liability to equity classified                     8,756       8,756
Stock-based compensation                     3,290       3,290
Reclassification of prior period preferred stock dividends                     (4,265) 4,265      
Reclassification of warrants from liability to equity classified                     4,885       4,885
Net loss                       (79,824)     (79,824)
Ending balance at May. 31, 2023           $ 919         731,270 (841,690)     (109,501)
Ending balance (shares) at May. 31, 2023   34       919,053 443                
Beginning balance at Aug. 31, 2022           $ 813         687,732 (782,857)     (94,312)
Beginning balance (shares) at Aug. 31, 2022   34       812,698 443                
Issuance of stock for convertible note repayment           $ 2         498       500
Issuance of stock for convertible note repayment (in shares)           1,822                  
Loss on induced conversion                     638       638
Stock issued for compensation                     310       310
Stock issued for compensation (in shares)           765                  
Exercise of warrants, net of issuance costs           $ 10         2,123       2,133
Exercise of warrants, net of issuance costs (in shares)           9,652                  
Make-whole shares related to private warrant exchange (in shares)           23                  
Dividend paid in common stock upon conversion of Series C convertible preferred stock ($0.50 per share)                     159       159
Dividend paid in common stock upon conversion of Series C convertible preferred stock ($0.50 per share) (in shares)           319                  
Dividends accrued on Series C and D convertible preferred stock                     (369)       (369)
Stock-based compensation                     1,467       1,467
Net loss                       (26,495)     (26,495)
Ending balance at Nov. 30, 2022           $ 825         692,558 (809,352)     (115,969)
Ending balance (shares) at Nov. 30, 2022   34       825,279 443                
Beginning balance at May. 31, 2023           $ 919         731,270 (841,690)     (109,501)
Beginning balance (shares) at May. 31, 2023   34       919,053 443                
Issuance of stock for convertible note repayment           $ 8         1,492       1,500
Issuance of stock for convertible note repayment (in shares)           8,661                  
Loss on induced conversion                     2,004       2,004
Warrants issued in note offering                     170       170
Stock issued for compensation           $ 1         154       155
Stock issued for compensation (in shares)           686                  
Warrant exercises           $ 3         297       300
Warrant exercises (in shares)           3,000                  
Dividends accrued on Series C and D convertible preferred stock                     (373)       (373)
Reclassification of warrants from liability to equity classified                     79       79
Stock-based compensation                     348       348
Net loss                       (11,571)     (11,571)
Ending balance at Aug. 31, 2023           $ 931         735,441 (853,261)     (116,889)
Ending balance (shares) at Aug. 31, 2023   34       931,400 443                
Beginning balance at May. 31, 2023           $ 919         731,270 (841,690)     (109,501)
Beginning balance (shares) at May. 31, 2023   34       919,053 443                
Loss on induced conversion                             2,640
Net loss                             (21,134)
Ending balance at Nov. 30, 2023           $ 971         747,472 (862,824)     (114,381)
Ending balance (shares) at Nov. 30, 2023   34       971,286 443                
Beginning balance at Aug. 31, 2023           $ 931         735,441 (853,261)     (116,889)
Beginning balance (shares) at Aug. 31, 2023   34       931,400 443                
Issuance of stock for convertible note repayment           $ 4         496       500
Issuance of stock for convertible note repayment (in shares)           3,535                  
Loss on induced conversion                     636       636
Warrants issued in note offering                     10       10
Note conversion           $ 14         4,379       4,393
Note conversion (in shares)           14,339                  
Stock issued for compensation           $ 1         97       98
Stock issued for compensation (in shares)           559                  
Stock issued for private offerings           $ 21         6,307       6,328
Stock issued for private offerings (in shares)           21,453                  
Dividends accrued on Series C and D convertible preferred stock                     (368)       (368)
Stock-based compensation                     474       474
Net loss                       (9,563)     (9,563)
Ending balance at Nov. 30, 2023           $ 971         $ 747,472 $ (862,824)     $ (114,381)
Ending balance (shares) at Nov. 30, 2023   34       971,286 443