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Income Taxes - Schedule of Significant Components of Company's Deferred Tax Assets (Liabilities) (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Stock-based compensation $ 765,000 $ 605,000
Start-up costs 115,000 115,000
Inventory reserves 510,000 1,080,000
Uniform capitalization of inventory costs 85,000 85,000
Allowance for doubtful accounts receivable 35,000 90,000
Equipment depreciation 255,000 240,000
Deferred revenue 915,000 915,000
Debt and PIA obligations carried at fair value 1,045,000
Accrued expenses 120,000 110,000
Net operating loss carryforward 19,855,000 17,515,000
Research and development tax credit carryforward 1,795,000 1,795,000
State jobs credit carryforward 230,000 230,000
Charitable contributions carryforward 60,000 55,000
Total deferred tax assets 24,740,000 23,880,000
Valuation reserve (24,595,000) (23,740,000)
Total deferred tax assets 145,000 140,000
Domestic international sales company (145,000) (140,000)
Total deferred tax liabilities (145,000) (140,000)
Net deferred tax assets (liability)