INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2021

The components of income before income taxes were as follows (in thousands):

	Years ended December 31,
	2021		2020

Income from operations before income taxes
Domestic	$	3,158	$	609
Foreign		42		(8)
Total	$	3,200	$	601

The components of income tax expense (benefit) were as follows (in thousands):

	Years ended December 31,
	2021			2020

Current:
Federal	$	—		$	2
State		17			2
Foreign		3			22
	$	20		$	26

Deferred:
Federal	$	894		$	(461	)
State		49			(33	)
Foreign		(58	)		6
		885			(488	)
Total income tax expense (benefit)	$	905		$	(462	)

A reconciliation from the federal statutory income tax provision to our effective tax expense (benefit) is as follows (in thousands):

	Years ended December 31,
	2021			2020

United States federal tax statutory rate	$	686		$	143
State taxes, net of federal benefit		(37	)		(31	)
Changes in valuation allowances against deferred tax assets		(132	)		—
Research and development tax credits		(24	)		(125	)
Foreign provision different than U.S. tax rate		31			6
PPP loan forgiveness		(196	)		—
Nondeductible expenses		43			(137	)
Deferred true-up		295			(226	)
Write off of attributes from disposed entity		279			—
Other		(40	)		(92	)
Total	$	905		$	(462	)

A summary of the deferred tax assets and liabilities is as follows (in thousands):

	December 31,
	2021			2020

Deferred tax assets (liabilities):
Accrued compensation and benefits	$	6		$	7
Inventory reserves		5			3
Allowance for doubtful accounts		14			—
Prepaid expenses and other		(35	)		(52	)
Warranty reserves		2			15
Intangible and other assets		(267	)		(158	)
Net operating loss carryforwards		3,757			4,756
Property, equipment and other		3			(10	)
Research and development credit		2,951			2,890
Total deferred tax asset:		6,436			7,451
Less: valuation allowance		(1,612	)		(1,743	)
Total deferred tax assets:	$	4,824		$	5,708