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Condensed Statements of Cash Flows - USD ($)
 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Operating activities    
  Net income $ 445,892 $ 2,830,009
  Adjustments to reconcile net income to net cash provided by operating activities:    
      Stock-based compensation 474,980 320,780
      Depreciation and amortization 394,287 352,849
      Amortization of debt discount 16,546 16,546
      Amortization of ROU Asset 322,604
      Deferred tax expenses (benefits) 116,485 (1,870,000)
  Changes in operating assets and liabilities:    
      Accounts receivable (815,172) (355,767)
      Inventories (732,996) (823,668)
      Prepaid expenses and other current assets (359,891) (440,006)
      Other assets (222,248)
      Accounts payable and accrued expenses 1,137,335 127,756
      Accrued payroll and related expenses (4,595) 272,841
      Net deferred revenue on shipments to distributors 82,156 70,131
      Deferred service revenue 6,169 (13,522)
      Net change in operating lease liability (262,788) (37,502)
         Net cash provided by operating activities 598,764 450,447
Investing activities    
  Purchases of PP&E including software and website development (560,079) (304,613)
       Net cash used in investing activities (560,079) (304,613)
Financing activities    
  Common stocks repurchased (377,950) (1,176)
  Proceeds from note payable 1,000,000
  Repayments of note payable (250,000) (125,000)
  Proceeds from stock options exercised 81,531 1,778,547
       Net cash (used in) provided by financing activities (546,419) 2,652,371
Net (decrease) increase in cash and cash equivalents (507,734) 2,798,205
Cash and cash equivalents at beginning of period 6,095,886 2,121,763
Cash and cash equivalents at end of period 5,588,152 4,919,968
Supplemental disclosure of cash flow information    
Cash paid for interest 81,386 90,933
Supplemental disclosure of non-cash activities    
  Payroll tax liability for retired restricted stock 115,215
  Property acquired under operating lease 3,851,195
  Conversion of note payable 130,000
  Acquisition of intangible assets $ 1,909,433