INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of reconciliation of income tax

The significant differences between the U.S. Federal statutory rate and our effective rate for financial reporting purposes are as follows:

	Years Ended December 31,
	2022		2021
Federal statutory tax rate	(21.0)	%	(21.0)	%
State taxed, net of federal tax benefit	(3.7)		(4.0)
Change in valuation allowance	14.3		23.9
Return-to-provision and other	7.9		1.3
Stock-based compensation	2.5		1.4
PPP loan forgiveness	—		(1.7)
Effective tax rate	—	%	—	%

Schedule of deferred tax assets and liabilities

Deferred income tax assets and liabilities consist of the following (in thousands):

	As of December 31,
	2022		2021
Deferred income tax assets:
Federal and state net operating loss carryovers	$	20,498	$	19,448
Capitalized research costs	432		—
Stock-based compensation	253		333
Compensation accruals and other	92		139
Operating leases related to ROU assets	89		130
Deferred revenue	11		—
Depreciation	8		—
Other	1		—
Total deferred income tax assets	21,384		20,050
Valuation allowance for deferred income tax assets	(21,298)		(19,916)
Deferred income tax assets, net of valuation allowance	86		134
Deferred income tax liabilities:
Depreciation	—		(7)
ROU assets	(86)		(127)
Total deferred income tax liabilities	(86)		(134)
Deferred income tax assets, net	$	—	$	—