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

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)

v3.19.3
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:        
Net income (loss) $ 1,130,898 $ (10,875,793) $ (19,194,236) $ (3,094,298)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation 731 813 1,544 8,039
Loss on disposal of assets     803 1,788
Stock-based compensation expense 344,577 330,212 674,961 608,676
Amortization of warrants and stock issued for services (1)       30,000
Fixed assets provided to university in lieu of cash       18,004
Change in fair value of derivative liabilities (5,151,124) 602,749 6,503,174 (767,198)
Fair value of derivative liabilities in excess of proceeds 322,644 7,174,634 7,174,634  
Loss on common stock issuance from conversion of accrued interest     9,794  
Loss on extinguishment of secured convertible promissory note - related party   590,392 590,392  
Amortization of debt discount 244,751 34,608 58,536  
Financing transaction costs     137,192  
Common stock issued for services       187,550
Changes in assets and liabilities:        
Prepaid expenses (169,079) 135,907 198,235 (121,273)
Deposits and other assets       34,290
Other current assets   (2,609) (2,609) 7,014
Accounts payable 57,862 (89,001) (85,324) (173,729)
Accounts payable to related party   65,000 11,701 (112,825)
Accrued expenses     (21,811) 42,677
Other current liabilities 182,494 (79,487)    
Net cash used in operating activities (3,036,246) (2,112,575) (3,943,014) (3,331,285)
Cash flows from investing activities:        
Purchases of property and equipment   (4,385) (4,385) (19,654)
Net cash used in investing activities   (4,385) (4,385) (19,654)
Cash flows from financing activities:        
Proceeds from Emerald Financing, net of $154,092 issuance costs     3,095,908  
Proceeds from Common stock issuance, net of $16,901 issuance costs   3,233,099    
Proceeds from Series B warrant exercises   98,700 98,700  
Proceeds from secured convertible promissory note - related party   400,000 400,000 500,000
Proceeds from convertible multi-draw credit agreement, net of $9,301 issuance costs 3,990,699   1,946,293  
Net cash provided by financing activities 3,990,699 3,731,799 5,540,901 3,513,002
Net increase in cash and restricted cash 954,453 1,614,839 1,593,502 162,063
Cash and restricted cash, beginning of period 1,857,885 264,383 264,383 102,320,000
Cash and restricted cash, end of period 2,812,338 1,879,222 1,857,885 264,383
Reconciliation of cash, cash equivalents and restricted cash:        
Cash 2,807,826 1,874,720 1,853,373,000 259,955,000
Restricted cash 4,512 4,502 4,512,000 4,428,000
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows 2,812,338 1,879,222 1,857,885,000 264,383,000
Cash Paid During Period For Abstract        
Interest 165,277   23,334  
Income taxes 1,600 1,600 1,642 1,631
Supplemental disclosures of non-cash financing activities:        
Conversion of outstanding preferred stock into common stock   1,947,227 1,947,228 1,386,000
Conversion of outstanding preferred stock subject to redemption into common stock   828,916 828,915 1,197,450
Reclassification of warrant liabilities to equity from exercise of warrants 144,375 1,301,866 1,539,866  
Fair value of common stock issued in extinguishment of convertible debt   1,710,000 1,713,766  
Fair value of warrants issued in connection with financings   $ 10,424,634 10,424,634  
Proceeds allocated to equity classified warrants issued with convertible multi-draw credit agreement 716,110   315,080  
Fair value of compound derivative liability bifurcated from convertible multi-draw credit agreement 193,414   204,102  
Beneficial conversion feature on convertible multi-draw credit agreement $ 1,584,850   $ 90,080  
Series D Preferred Stock [Member]        
Cash flows from financing activities:        
Proceeds from Issuance of Preferred Stock and Preference Stock       1,131,857
Series A Preferred Stock [Member]        
Cash flows from financing activities:        
Proceeds from Issuance of Preferred Stock and Preference Stock       $ 1,881,145