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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2016
INCOME TAXES [Abstract]  
Income tax expense differs from statutory amounts
Income tax expense differs from the statutory amounts as follows:

 
2016
  2015 
       
Income taxes at U.S. statutory rate
 
$
(7,437,000
)
 
$
(4,939,000
)
Current year reserve
  
7,423,000
   
6,257,000
 
Other
  
14,000
   
(1,318,000
)
         
Total tax expense
 
$
-
  
$
-
 
Temporary differences that give rise to deferred tax assets (liabilities)
The temporary differences that give rise to deferred tax assets and liabilities were as follows:
 
 
December 31,
 
 
2016
  2015 
Deferred tax assets (liabilities)
      
Net operating loss carryforwards
 
$
73,864,000
  
$
68,636,000
 
General business credit carryforwards
  
2,557,000
   
2,497,000
 
State credits
  
3,089,000
   
2,055,000
 
Property, equipment and goodwill
  
(23,000
)
  
(25,000
)
Stock options
  
6,450,000
   
3,678,000
 
Derivatives
  
(92,000
)
  
(92,000
)
Deferred revenue
  
1,464,000
   
1,669,000
 
Intangible assets
  
228,000
   
595,000
 
Accrued interest
  
253,000
   
253,000
 
Other
  
231,000
   
231,000
 
Gross deferred tax assets
  
88,021,000
   
79,497,000
 
Valuation allowance
  
(88,021,000
)
  
(79,497,000
)
Net deferred taxes
 
$
-
  
$
-
 
Net operating loss carryforwards and general business credits expiration dates
These carryforwards expire as follows:

 
Net operating
loss carryforwards
  
General business
credit carryforwards
 
2017
 
$
-
  
$
-
 
2018
  
3,324,000
   
112,000
 
2019
  
3,306,000
   
95,000
 
Thereafter
  
210,616,000
   
2,350,000
 
 
 
$
217,246,000
  
$
2,557,000