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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
The provision (benefit) for income taxes consists of the following:

The provision (benefit) for income taxes consists of the following:

 

Year ended December 31,  2020  2019 
Current:         
 Federal  $(57,788) $ 
 State   4,288   3,877 
Deferred:         
Federal       
State       
Total  $(53,500) $3,877 
The difference between the income tax provision computed at the federal statutory rate and the actual tax provision (benefit) is accounted for as follows:

The difference between the income tax provision computed at the federal statutory rate and the actual tax provision (benefit) is accounted for as follows:

 

December 31,   2020  2019 
Taxes computed at the federal statutory rate   $(288,527) $(1,012,457)
State income tax, net    3,387   3,890 
Research and development tax credit    (210,374)  (180,813)
Change in valuation allowance    393,599   1,127,573 
Other    59,242   10,870 
Refund from IRS audit    (57,788)   
Permanent differences    46,961   54,814 
Provision (benefit) for income taxes   $(53,500) $3,877 

The components of deferred income tax assets and liabilities are as follows:

The components of deferred income tax assets and liabilities are as follows:

 

Deferred Tax Assets:   2020  2019 
Allowance for doubtful accounts   $56,884  $50,100 
Credit carryforwards    1,758,809   1,435,543 
Inventory reserve    307,456   423,605 
Restricted stock    189,072   87,976 
Other    18,654   15,237 
Acquisition costs    93,063   100,774 
Lease liability    940,230   934,463 
Disallowed interest expense    891,345   791,785 
Net operating loss carryforward    20,886,666   21,058,838 
Deferred tax assets    25,142,179   24,898,321 
           
Valuation allowance    (21,608,803)  (21,213,040)
           
Deferred Tax Liabilities:          
Prepaid expenses    115,437   114,738 
Revenue recognition    2,086,045   2,133,348 
Property and equipment    452,384   593,678 
Right of use asset    879,510   843,517 
Deferred tax liabilities   $3,533,376  $3,685,281 
Net deferred tax assets (liabilities)   $  $