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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Provision (Benefit)

The components of income tax provision (benefit) for the years ended December 31, 2020 and 2019 are as follows:

 

      2020       2019  
Current taxes:                
Federal   $ —     $ —  
State     —       —  
                 
Total current taxes     —       —  
Deferred tax provision (benefit)     —       —  
                 
Income tax provision (benefit)   $ —     $ —  
Schedule of Reconciliation of Income Tax (Provision) Benefit

A reconciliation of the income tax (provision) benefit at the statutory rate of 21% for the years ended December 31, 2020 and 2019 to the Company’s effective tax rate is as follows:

 

    2020     2019  
U.S. Statutory tax rate     21.0 %     21.0 %
State taxes, net of Federal benefit     5.1 %     5.1 %
Stock based compensation     (1.9 )%     (2.6 )%
Change in valuation reserve on deferred tax assets     (32.6 )%     (22.4 )%
Forgiveness of Payroll Protection Plan loan     11.3 %     — %
Other, net     (2.9 )%     (1.1 )%
                 
Income tax (provision) benefit     — %     — %
Schedule of Significant Components of Company's Deferred Tax Assets (Liabilities)

Significant components of the Company’s deferred tax assets (liabilities) as of December 31, 2020 and 2019 are as follows:

 

    2020     2019  
Deferred tax assets:                
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)   $ —     $ —