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

Unaudited Condensed Consolidated Statements of Cash Flows

v3.19.2
Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:        
Net loss $ (3,113,992) $ (2,146,968) $ (4,924,617) $ (15,665,983)
Adjustments to reconcile net loss to cash used in operating activities:        
Depreciation and amortization 39,821 67,374 185,803 289,208
Share-based compensation expense 337,966 238,835 634,082 1,769,964
Change in fair value of liability classified warrants 340,115 (190,219) (3,269,148) 1,470,174
Changes in operating assets and liabilities:        
Trade and other receivables 56,275 175,430 18,745 (302,311)
Related party receivable 362,176 89,937 62,064 53,081
Prepaid expenses 75,938 56,241 32,303 297,298
Other assets 19,125 (4,000) (3,991) 1,855
Accounts payable and accrued expenses 244,319 293,119 (36,991) (1,522,917)
Accrued bonuses (418,625) (418,625) (434,338)
Other current liabilities (27,648) (7,369) 11,490 (230,189)
Other long term liabilities (704) (1,876) (16,333)
Net cash used in operating activities (1,665,905) (1,846,949) (7,692,419) (13,416,162)
Cash flows from investing activities:        
Maturity of short-term investments 5,000,000 5,000,000 5,000,000
Net cash provided by investing activities 5,000,000 4,998,286 (94,046)
Cash flows from financing activities:        
Payments of short-term notes payable (117,019) (104,244) (363,345) (326,533)
Net cash used in financing activities (117,019) (104,244) 1,814,233 4,990,778
Effects of exchange rates on cash 903 501 (7,930) (579)
Net (decrease) increase in cash and cash equivalents (1,782,021) 3,049,308 (887,830) (8,520,009)
Cash and cash equivalents, beginning of period 5,787,110 6,674,940 6,674,940 15,194,949
Cash and cash equivalents, end of period 4,005,089 9,724,248 5,787,110 6,674,940
Supplemental disclosure of cash flows information:        
Cash paid for interest $ 2,017 $ 1,920 $ 7,698 $ 118,257