Annual report pursuant to Section 13 and 15(d)

Note 14 - Income Taxes (Tables)

v3.20.4
Note 14 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
Year Ended
 
   
December 31,
 
   
2020
   
2019
 
                 
Income tax benefit at statutory rate
   
(21
)%    
(21
)%
State income taxes, net of federal benefit
   
(3
)%    
(4
)%
Change in valuation allowance
   
20
%    
(39
)%
Debt restructuring
   
0
%    
6
%
Limitation on net operating loss and credit carryovers
   
0
%    
56
%
Other
   
4
%    
2
%
Effective tax rate
   
0
%    
0
%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
December 31,
 
   
2020
   
2019
 
Deferred tax assets:
               
Net operating loss carryforwards
  $
20,891
    $
16,688
 
Capitalized start up costs
   
2,866
     
3,225
 
Research and development credits
   
631
     
527
 
Accruals and reserves
   
773
     
532
 
Fixed assets and depreciation
   
291
     
128
 
Total deferred tax assets
   
25,452
     
21,100
 
Deferred tax liabilities:
               
Valuation allowance
   
(25,452
)    
(21,100
)
                 
Net deferred tax assets
  $
-
    $
-
 
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
   
Year Ended
 
   
December 31,
 
   
2020
   
2019
 
                 
Balance at the beginning of the year
  $
223
    $
450
 
Additions (deletions) based upon tax positions related to the current year
   
22
     
(227
)
Balance at the end of the year
  $
245
    $
223