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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Cash flows from operating activities:          
Net loss $ (2,481,326) $ (1,771,827) $ (6,751,958) $ (4,539,100)  
Adjustments to reconcile net loss to net cash used in operating activities:          
Non-cash stock compensation issued for services     282,633 80,300  
Non-cash stock compensation issued to directors and employees     274,698 400,675  
Fair value of stock options issued to employees     1,151,800 852,187  
Amortization of discount on notes payable     1,014,959 678,043  
Amortization of leasehold right of use asset     63,047 16,930  
Gain on extinguishment of debt (159,126)  
Loss from equity method investment 113,492 113,492  
Depreciation and amortization     23,680 8,938  
Changes in assets and liabilities:          
Accounts receivable     (28,960) 3,859  
Interest receivable     (579)  
Inventory     (25,018) (140,097)  
Prepaid expenses and other current assets     (75,661) (22,757)  
Accounts payable and accrued expenses     186,656 84,448  
Accrued compensation     (65,415) 139,575  
Deferred revenue     (535,714) (535,715)  
Leasehold liability     (21,091) (16,067)  
Accrued interest     34,811 34,870  
Income taxes payable     (1,062) (912)  
Net cash used in operating activities     (4,518,808) (2,954,823)  
Cash from investing activities:          
Payments to acquire property, plant, and equipment     (744,247) (20,528)  
Payments to acquire patents     (17,633)  
Payments to acquire trademarks     (20,909) (37,480)  
Investment in joint ventures     (252,884) (32,674)  
Payment for notes receivable     (200,000)  
Net cash used in investing activities     (1,235,673) (90,682)  
Cash from financing activities:          
Proceeds from the sale of notes payable     2,998,905  
Proceeds from notes payable     157,620  
Proceeds from warrant exercise     123,562  
Proceeds from unit purchase option exercise     246,278  
Principal payment on notes payable – related parties     (40,000)  
Principal payment on notes payable     (295,000)  
Payment of stock issuance expenses     (106,316) $ (1,800,000)
Net cash provided by financing activities     369,840 2,715,209  
Increase (decrease) in cash and cash equivalents     (5,384,641) (330,296)  
Cash and cash equivalents at beginning of period     10,097,760 1,238,585 1,238,585
Cash and cash equivalents at end of period $ 4,713,119 $ 908,289 4,713,119 908,289 $ 10,097,760
Supplemental disclosure of cash flow information:          
Interest     29,125 83,134  
Taxes     912 1,062  
Noncash activities:          
Common stock issued upon note payable and accrued interest conversion     1,243,788  
Common stock issued for prepaid services     168,850  
Cashless exercise of warrants     9  
Cashless exercise of unit purchase options     8  
Initial ROU asset and lease liability     1,374,956  
Fair value of options issued for debt     868,985  
Fair value of warrants issued with debt     999,464  
Fair value of warrants issued related to debt placement     47,293  
Beneficial conversion feature on convertible notes     $ 1,208,163