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STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES        
Net loss $ (5,243,819) $ (4,509,172) $ (5,772,958) $ (5,749,382)
Adjustments to reconcile net loss to net cash used in operating activities        
Warrants issued for services 57,005 62,731 78,390 416,934
Stock options issued for services 500,591 339,076 387,688 794,738
Common stock issued for services and fees 373,888 135,333 172,192 270,343
Depreciation and amortization and noncash patent expenses 499,197 322,495 465,795 325,946
Loss on disposal of property and equipment 10,084 10,084
(Increase) decrease in assets        
Prepaid expenses and other current assets 269,630 268,560 247,288 (447,977)
(Decrease) increase in liabilities        
Accounts payable (39,051) (31,610) 96,533 (10,819)
Accounts payable and accrued expenses-related parties 24,201 43,962 5,054 3,211
Deferred lease liability (25,394)    
Accrued expenses 29,354 (46,305) (91,031) 34,886
Net cash used in operating activities (3,554,398) (3,404,846) (4,400,965) (4,362,120)
CASH FLOWS FROM INVESTING ACTIVITIES        
Cost of intangibles (52,022) (371,320) (397,479) (81,743)
Purchase of property and equipment (215,513) (897,774) (1,037,384) (183,789)
Sale of property and equipment 2,500 2,500
Net cash used in investing activities (267,535) (1,266,594) (1,432,363) (265,532)
CASH FLOWS FROM FINANCING ACTIVITIES        
Exercise of options and warrants 161,500 161,500 502,500
Issuance of common stock, institutional investor 4,165,585 3,612,400 4,863,535 5,722,060
Repayment of equipment purchase payable (350,500) (380,470) (499,409) (71,425)
Net cash provided by financing activities 3,815,085 3,393,430 4,525,626 6,153,135
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (6,848) (1,278,010) (1,307,702) 1,525,483
CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD 2,174,625 3,482,327 3,482,327 1,956,844
CASH AND CASH EQUIVALENTS - END OF PERIOD 2,167,777 2,204,317 2,174,625 3,482,327
Supplemental Disclosure of Non-cash investing and financing activities:        
Operating Lease - Right of Use - Building and Operating lease liability 885,094    
Equipment acquisition funded by liability $ 774,081 749,316
Common stock for service, paid in advance     $ 36,250