XML 19 R4.htm IDEA: XBRL DOCUMENT v3.21.1
Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Statement [Abstract]    
Revenues
Expenses:    
Research and development 7,212,000 6,818,000
General and administrative 6,568,000 6,412,000
Depreciation and amortization 817,000 2,065,000
Licensed technology impairment charge 32,916,000
Total expenses 14,597,000 48,211,000
Loss from operations (14,597,000) (48,211,000)
Interest and miscellaneous income 15,000 652,000
Interest expense (1,420,000) (600,000)
Net loss $ (16,002,000) $ (48,159,000)
Basic and diluted loss per common share $ (0.17) $ (0.52)
Weighted average number of common shares outstanding – basic and diluted 94,234,653 92,362,505
Other comprehensive income:    
Change in unrealized gains related to available-for-sale debt securities $ 13,000 $ 386,000
Comprehensive loss $ (15,989,000) $ (47,773,000)