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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2019
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, 2019 and 2018 are as follows:

 

      2019       2018  
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, 2019 and 2018 to the Company’s effective tax rate is as follows:

 

    2019     2018  
U.S. Statutory tax rate     21.0 %     21.0 %
State taxes, net of Federal benefit     5.1 %     5.1 %
Federal Research and development tax credits     — %     — %
Stock based compensation     (2.6 )%     (3.0 )%
Revaluation of deferred tax assets based on changes in enacted tax laws     — %     — %
Change in valuation reserve on deferred tax assets     (22.4 )%     (22.1 )%
Other, net     (1.1 )%     (1.0 )%
                 
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, 2019 and 2018 are as follows:

 

    2019     2018  
Deferred tax assets:                
Stock-based compensation   $ 605,000     $ 650,000  
Start-up costs     115,000       115,000  
Inventory reserves     1,080,000       860,000  
Uniform capitalization of inventory costs     85,000       90,000  
Allowance for doubtful accounts receivable     90,000       45,000  
Equipment depreciation     240,000       140,000  
Deferred revenue     915,000       975,000  
Debt and PIA obligations carried at fair value     1,045,000       225,000  
Accrued expenses     110,000       385,000  
Net operating loss carryforward     17,515,000       16,080,000  
Research and development tax credit carryforward     1,795,000       1,795,000  
State jobs credit carryforward     230,000       230,000  
Charitable contributions carryforward     55,000       50,000  
                 
Total deferred tax assets     23,880,000       21,640,000  
Valuation reserve     (23,740,000 )     (21,500,000 )
                 
Total deferred tax assets     140,000       140,000  
Domestic international sales company     (140,000 )     (140,000 )
Total deferred tax liabilities     (140,000 )     (140,000 )
                 
Net deferred tax assets (liability)   $ —     $ —