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INCOME TAXES (Tables)
 12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Schedule of components of the provision for income taxes

The provision for income taxes consists of the following:

 

Year ended December 31,   2019   2018 
Current:           
Federal   $—   $(2,220)
State    3,877    18,268 
Deferred:           
Federal    —    — 
State    —    — 
Total   $3,877   $16,048 

 
Schedule of difference between the income tax provision computed at the federal statutory rate and the actual tax provision

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

 

December 31,  2019   2018 
Taxes computed at the federal statutory rate  $(1,012,457)  $(1,511,080)
State income tax, net   3,890    14,432 
Prior year true-up   —    17,865 
Research and development tax credit   (180,813)   (163,903)
Change in valuation allowance   1,127,573    1,617,139 
Other   10,870    171 
Permanent differences   54,814    41,424 
Provision for income taxes  $3,877   $16,048 

 
Schedule of components of deferred income tax assets and liabilities

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

 

Deferred Tax Assets:  2019   2018 
Allowance for doubtful accounts  $50,100   $ 60,467 
Credit carryforwards   1,435,543    1,254,731 
Inventory reserve   423,605    — 
Deferred rent   —    116,784 
Stock options   —    12,478 
Restricted stock   87,976    88,410 
Other   15,237    7,550 
Acquisition costs   100,774    109,397 
Lease liability   934,463    — 
Disallowed interest expense   791,785    431,319 
Net operating loss carryforward   21,058,838    20,902,163 
Deferred tax assets   24,898,321     22,983,299 
           
Valuation allowance   (21,213,040)   (20,222,640)
           
Deferred Tax Liabilities:          
Prepaid expenses   114,738     158,777 
Revenue recognition   2,133,348    2,197,535 
Property and equipment   593,678    404,347 
Right of use asset   843,517    — 
Deferred tax liabilities  $3,685,281   $2,760,659 
Net deferred tax assets (liabilities)  $—   $—