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Consildated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Cash flows used in operating activities:    
Net loss $ (2,538,500) $ (545,520)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 130,727 167,293
Amortization of right-of-use assets 45,805 18,916
Amortization of debt issuance costs 17,605 2,418
Amortization of sales contract costs 9,605 5,566
Stock based compensation 562,875 404,718
Provision for accounts receivable allowances 9,714
Provision for inventory reserves 40,266
Non-cash loan forgiveness (20,000)
Changes in operating assets and liabilities:    
Accounts receivable (331,313) 557,314
Inventories 2,505,790 (1,479,232)
Prepaid expenses and other current assets (53,489) (3,624)
Other assets 17,778 (110,447)
Accounts payable (4,179,887) (1,365,295)
Accrued expenses (600,100) (2,811,777)
Deferred revenue 97,276 228,436
Operating lease liabilities (46,208) (18,513)
Net cash used in operating activities (4,312,056) (4,969,747)
Cash flows from investing activities:    
Purchases of equipment (115,103) (257,563)
Certification costs capitalized (156,300)
Net cash used in investing activities (271,403) (257,563)
Cash flows from financing activities:    
Net proceeds from the SVB bank credit line 1,989,222 7,009,270
Repayment of the Rosenthal bank credit line (2,442,246)
Costs associated with bank credit line (92,905)
Repayment of government loan (26,506)
Proceeds from stock option exercises 99,169 379,147
Net cash provided by financing activities 2,061,885 4,853,266
Net decrease in cash and cash equivalents (2,521,574) (374,044)
Cash, cash equivalents, and restricted cash - Beginning 13,070,445 1,571,757
Cash, cash equivalents, and restricted cash - Ending 10,548,871 1,197,713
Cash paid during the period for:    
Interest 78,331 25,945
Income taxes 6,000 1,500
Cash is reported on the consolidated statements of cash flows as follows:    
Cash and cash equivalents 10,048,871 397,713
Restricted cash 500,000 800,000
Total cash, cash equivalents and restricted cash $ 10,548,871 $ 1,197,713