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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Rate Reconciliation A reconciliation of income taxes computed using the U.S. federal statutory rate to that reflected in operations as of December 31, 2019 and 2018, respectively, is as follows:

December 31,

2019

2018
U.S. federal statutory income tax rate
21.0 %

21.0 %  
State and local taxes, net of federal benefit 
1.6 %

5.1 %  
Permanent differences
(4.2)%

0.0 %
Research and development credits  
1.6 %

3.7 %  
Change in valuation allowance 
(19.8)%

(29.8)%
Other
(0.2)%0.0 %
Effective income tax rate 
0.0 %  

0.0 %  
Schedule of Deferred Tax Assets
The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets were as follows (in thousands):
 Tax year ended December 31,

20192018
Deferred tax assets (liabilities):      
Net operating loss carryforwards$9,512  $2,904  
Research and development tax credits1,014  459  
Accrual to cash adjustment—  657  
Accruals and other280  —  
Stock-based compensation196  —  
Total deferred tax assets11,002  4,020  
Valuation Allowance(10,995) (4,010) 
Subtotal 10  
Net fixed assets(7) (10) 
Net deferred tax assets$—  $—