Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Taxes

Schedule of consolidated income before taxes for domestic and foreign operations

	Year ended December 31,
	2021			2020
Domestic	$	(6,201	)	$	(4,574	)
Foreign		(1,776	)		(1,350	)
Total	$	(7,977	)	$	(5,924	)

Schedule of components of (provision) for income taxes

	Year ended December 31,
	2021			2020
Current:
Federal	$	373		$	6,543
State		(9	)		(36	)
Foreign		(81	)		(78	)
Total current		283			6,429
Deferred:
Federal		1,326			(3,104	)
State		398			286
Foreign		302			216
Total		2,026			(2,602	)
Change in valuation allowance		(2,026	)		2,602
Total deferred		—			—
Tax benefit (provision)	$	283		$	6,429

Schedule of income tax (provision) differs from that computed at the federal statutory corporate income tax rate

	Year ended December 31,
	2021			2020
Tax benefit at federal statutory rate	$	1,674		$	1,244
State income tax benefit (provision), net of federal benefit		335			244
Research and development tax credits		361			272
Foreign earnings or losses taxed at different rates		(28	)		(38	)
Tax rate change, due primarily to loss carryback		(2	)		2,720
Other		(31	)		(615	)
Change in valuation allowance		(2,026	)		2,602
Tax provision	$	283		$	6,429

Schedule of tax effects of significant temporary differences representing net deferred tax assets and liabilities

	2021			2020
Deferred revenue	$	9		$	21
Basis difference in intangible assets		1,319			2,994
Inventory reserve		2,377			2,434
Net operating loss carryforwards		7,121			3,605
Research and development tax credits		1,579			1,272
Accrued expenses		43			61
Stock-based compensation		308			309
Allowance for sales returns and doubtful accounts		83			128
Difference in property and equipment basis		(124	)		(145	)
Other		469			479
Total net deferred income tax asset		13,184			11,158
Less: Valuation allowance		(13,184	)		(11,158	)
Net deferred income tax asset (liability)	$	—		$	—

Schedule of reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions

	Year ended December 31,
	2021			2020
Balance - beginning of year	$	861		$	298
Additions based on tax positions related to the current year		61			661
Additions for tax positions of prior years		—			—
Reductions for tax positions of prior years		—			—
Settlements		(20	)		(43	)
Lapse in statutes of limitations		(7	)		(55	)
Uncertain tax positions, ending balance	$	895		$	861