v3.24.0.1
INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Schedule of provision for income taxes
          
The loss before provision for income taxes consisted of the following (in thousands):
   Year Ended December 31, 
   2023   2022 
Domestic  $(19,790)  $(17,441)
International        
Total  $(19,790)  $(17,441)
Schedule of deferred tax assets
         
   Year Ended December 31, 
   2023   2022 
Deferred tax assets:          
Net operating loss carryforwards  $27,077   $25,309 
Tax credit   2,559    2,197 
Fixed assets and intangibles   603    798 
Stock compensation   1,327    1,052 
Accruals and other   303    212 
Lease liability   802    1,079 
Capitalized research and development   3,822    1,797 
Total deferred tax assets   36,493    32,444 
Deferred tax liabilities:          
Right of use asset   (755)   (1,076)
Total deferred tax assets   (755)   (1,076)
Valuation allowance   (35,738)   (31,368)
Net deferred tax asset  $   $ 
Schedule of net operating losses and tax credit carryforwards
            
   Amount     Expiration in years  
Net operating losses, federal  $84,084     No expiration  
Net operating losses, federal  $34,791     2027-2037  
Net operating losses, state  $38,509     2030-2043  
Tax credits, federal  $2,121     2036-2043  
Tax credits, state  $897     No expiration  
Tax credits, state  $1,046     2031-2038  
Schedule of effective tax rate
        
   Year ending December 31, 
   2023   2022 
Statutory rate   21.00 %    21.00 % 
State rate   1.29 %    3.51 % 
Change in valuation allowance   (22.08)%    (25.95)% 
Other non-deductible items   (0.02)%    – % 
Change in tax credits   0.66 %    0.70 % 
Foreign withholding tax   – %    – % 
Section 382 limitation   – %    – % 
Section 162(m) limitation   (0.11)%    (0.47)% 
Stock based compensation excess windfall   (0.74)%    1.20 % 
Total   – %    – % 
Schedule of unrecognized tax benefits
        
   2023   2022 
January 1 – unrecognized tax benefits  $1,046   $896 
Increases (decreases) – prior year tax positions   10    (1)
Increases – current year tax positions   163    151 
December 31 - unrecognized tax benefits  $1,219   $1,046 
Schedule of valuation allowance
                
  

Balance at

Beginning

of Year

   Additions   Deductions  

Balance

at End of

Year

 
Deferred tax assets valuation allowance                    
Year ended December 31, 2023  $31,368   $4,536   $166   $35,738 
Year ended December 31, 2022  $26,842   $4,636   $110   $31,368