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Balance Sheets - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
   Cash and cash equivalents $ 6,095,886 $ 2,121,763
   Accounts receivable, net 2,576,240 2,112,514
   Inventories, net 5,154,524 3,195,842
   Prepaid expenses and other current assets 395,161 335,386
   Deferred cost on shipments to distributors 158,977 170,016
      Total current assets 14,380,788 7,935,521
Property and equipment    
   Machinery and office equipment 2,436,897 2,286,268
   Computer equipment 1,909,895 1,412,030
 Property and equipment, gross 4,346,792 3,698,298
   Accumulated depreciation (3,277,979) (2,850,635)
      Property and equipment, net 1,068,813 847,663
Intangible assets, net 1,813,961
Other long-term assets 140,281 159,039
Deferred tax assets 7,960,419 6,057,690
Operating lease right-of-use asset 210,839 609,331
      Total assets 25,575,101 15,609,244
Current liabilities:    
   Accounts payable and accrued expenses 2,169,055 1,372,701
   Accrued payroll and related expenses 692,994 375,511
   Deferred revenue on shipments to distributors 407,235 450,591
   Short term portion of deferred service revenue 17,128 25,522
   Notes payable – current portion 500,000
   Subordinated convertible notes payable, net of discount 143,514 169,619
   Subordinated convertible notes payable, net of discount-related party 1,201,334 1,272,138
   Operating lease – current portion 258,097 483,254
      Total current liabilities 5,389,357 4,149,336
Long-term portion of note payable 125,000
Long term portion of operating lease 258,097
Long-term portion of deferred service revenue 14,281 28,794
   Total liabilities 5,528,638 4,436,227
Commitments and contingencies
Stockholders’ equity:    
Common stock, $0.001 par value: Authorized – 20,000,000 shares, Issued and outstanding – 7,183,874 shares at December 31, 2021 and 6,102,630 shares at December 31, 2020 7,184 6,103
   Additional paid-in capital 66,139,630 61,733,522
   Accumulated deficit (46,100,351) (50,566,608)
      Total stockholders’ equity 20,046,463 11,173,017
         Total liabilities and stockholders’ equity $ 25,575,101 $ 15,609,244