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Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Statement of Cash Flows [Abstract]    
Net loss $ (4,152,506) $ (5,593,302)
Adjustments to reconcile net loss to net cash used for operating activities    
Depreciation 548,323 651,603
Amortization 63,813 63,610
Amortization of right of use asset 55,340 38,268
Change in allowance for doubtful accounts (8,364) 89,397
Change in inventory reserve (41,558) 69,414
Interest expense related to debt discount 276,013 881,871
Warrant modification expense 307,460
Stock-based compensation 276,641 225,026
Stock and options issued for services 130,000 335,914
Gain on derivative (156,540) (1,114,625)
Gain on debt extinguishment (379,200)
Changes in assets and liabilities    
Accounts receivable (131,997) (16,757)
Inventories (199,142) 456,938
Prepaid expenses and other assets (29,460) 41,482
Deposits (6,513) 31,065
Accounts payable (272,022) (502,376)
Accrued expenses 213,107 350,780
Advanced payments 401,306
Accrued interest 214,917 331,432
Net Cash (used for) operating activities (3,197,782) (3,353,326)
Investing Activities    
Purchase of property and equipment (59,662) (466,216)
Purchase of intangibles (14,526) (5,324)
Net Cash (used for) investing activities (74,188) (471,540)
Financing Activities    
Cash received for warrant exercises 1,500,357
Cash received for stock, net of offering costs 3,797,800 2,400,000
Repayments of convertible notes (157,366)
Proceeds from note payable 568,131
Debt issuance costs (12,008)
Payments of operating leases (56,692) (25,686)
Net Cash from financing activities 4,139,865 3,874,671
Net change in cash and restricted cash 867,895 49,805
Cash and restricted cash, beginning of year 1,091,374 1,041,569
Cash and restricted cash, end of year 1,959,269 1,091,374
Cash payments for interest 2,775
Non-cash financing and investing activities    
Total property and equipment included in accounts payable 26,084
Debt discount warrant and derivative liability 107,611
Convertible notes principal and interest settled through warrant exercise 384,563
Operating lease right-of-use asset 241,555
Deferred compensation settled through issuance of warrants 167,893 758,798
Net carrying value of convertible notes and accrued interest settled through issuance of stock (debt extinguishment) 1,770,963
Accrued interest settled through issuance of stock $ 392,789