v3.26.1
INCOME TAXES - (Details - Schedule of income tax reconciliation) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Effective Income Tax Rate Reconciliation [Line Items]    
Nondeductible permanent differences $ 227 $ 414
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent (2.90%) (4.60%)
Changes in valuation allowance (2) $ 1,436 $ 1,462
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent [1] (18.10%) (16.40%)
Effective tax rate $ 0 $ 0
Effective Income Tax Rate Reconciliation, Percent 0.00% 0.00%
Domestic Tax Jurisdiction [Member]    
Effective Income Tax Rate Reconciliation [Line Items]    
U.S. federal statutory tax rate (benefit) $ (1,663) $ (1,876)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%
State and Local Jurisdiction [Member]    
Effective Income Tax Rate Reconciliation [Line Items]    
State income taxes, net of federal income tax effect (1) $ 0 $ 0
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent [2] 0.00% 0.00%
[1] The change in valuation allowance related to state and local tax is included in the “State and local tax” line above.
[2] In 2025 and 2024, the majority of state and local income taxes, net of federal effect, are attributable to taxes in California.