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Statements of Stockholders’ Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Subscriptions Receivable
Accumulated Loss
Beginning balance (in shares) at Dec. 31, 2015   6,661,000      
Beginning balance at Dec. 31, 2015 $ (745) $ 7 $ 0 $ (3) $ (749)
Private issuance @ $3.00 / share (in shares)   234,297      
Private issuance @ $3.00 / share 703   703    
Issued for Moleculin acquisition (in shares)   999,931      
Issued for Moleculin acquisition 5,999 $ 1 5,998    
Issued for technology (in shares)   629,000      
Issued for technology 3,774 $ 1 3,773    
Issued for cash - IPO, net of stock issuance costs of $1,150 (in shares)   1,540,026      
Issued for cash - IPO, net of stock issuance costs of $1,150 8,089 $ 1 8,088    
Warrants issued for services 375   375    
Stock granted for services (in shares)   24,000      
Stock granted for services 158   158    
Stock-based compensation 166   166    
Issued for convertible debt (in shares)   2,076,598      
Issued for convertible debt 364 $ 2 362    
Subscription agreement settled for cash 3     3  
Net loss (3,926)       (3,926)
Ending balances (in shares) at Dec. 31, 2016   12,164,852      
Ending balance at Dec. 31, 2016 14,960 $ 12 19,623 0 (4,675)
Stock granted for services (in shares)   79,167      
Stock granted for services 89   89    
Stock-based compensation 707   707    
Issued for convertible debt (in shares)   2,010,640      
Issued for convertible debt 302 $ 2 300    
Issued for cash - sale of units at $1.35 per unit, net of stock issuance costs of $550 (in shares)   3,710,000      
Issued for cash - sale of units at $1.35 per unit, net of stock issuance costs of $550 317 $ 4 313    
Warrants exercised, net of issuance costs of $73 (in shares)   2,728,434      
Warrants exercised, net of issuance costs of $73 8,903 $ 3 8,900    
Issued for cash - sale of common stock in ATM offering, net of issuance costs of $166 (in shares)   776,016      
Issued for cash - sale of common stock in ATM offering, net of issuance costs of $166 1,645   1,645    
Net loss (9,805)       (9,805)
Ending balances (in shares) at Dec. 31, 2017   21,469,109      
Ending balance at Dec. 31, 2017 $ 17,118 $ 21 $ 31,577 $ 0 $ (14,480)