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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Current assets:    
Cash $ 23,500,000 $ 16,985,000
Other receivable 835,000 684,000
Prepaid expenses and other current assets 800,000 1,097,000
Total current assets 25,135,000 18,766,000
Property and equipment, net 308,000 670,000
Right-of-use assets - operating leases 1,093,000 2,567,000
Goodwill 2,044,000 2,044,000
In-process research and development 5,990,000 5,990,000
Investment in non-controlling interest 385,000 1,000,000
Security deposits and other assets 421,000 488,000
Total assets 35,376,000 31,525,000
Current liabilities:    
Accounts payable 1,106,000 1,755,000
Accrued expenses 2,384,000 1,249,000
Operating lease liabilities, current 149,000 426,000
Other current liabilities 45,000 247,000
Total current liabilities 3,684,000 3,677,000
Warrant liabilities 13,315,000 0
Operating lease liabilities, non-current 1,018,000 2,297,000
Other liabilities 48,000 48,000
Total liabilities 18,065,000 6,022,000
Stockholders' equity:    
Common stock, $0.005 par value, 100,000 shares authorized at March 31, 2022 and December 31, 2021; 57,452 and 52,021 issued and outstanding at March 31, 2022 and December 31, 2021, respectively 287,000 260,000
Additional paid-in capital 167,100,000 165,944,000
Accumulated deficit (150,077,000) (140,702,000)
Total stockholders' equity 17,311,000 25,503,000
Total liabilities and stockholders' equity 35,376,000 31,525,000
Series A Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, $0.005 par value, 1,000 shares authorized, 156 designated and outstanding of Series A convertible preferred stock at March 31, 2022 and December 31, 2021, $156 liquidation preference $ 1,000 $ 1,000