INCOME TAXES (Details - Deferred tax assets) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 6,090	$ 5,748
Research and development and other credit carryforwards	630	637
Share-based compensation	816	803
Intangible amortization	(12)	0
Right-of-use operating lease liabilities	1,389	1,550
Other	(5)	(12)
Total deferred tax assets	8,908	8,726
Less: valuation allowance	(7,546)	(7,235)
Net deferred tax assets	1,362	1,491
Deferred tax liabilities:
Depreciation on property and equipment	(132)	(113)
Right-of-use operating lease assets	(1,230)	(1,378)
Total deferred tax liabilities	(1,362)	(1,491)
Net deferred tax position	$ 0	$ 0