Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Taxes (Tables)

Schedule of income tax expense/(benefit)

	Years Ended December 31,
	2021		2020
Current:
Federal	$	0	$	(72	)
State		3		3
		3		(69	)
Deferred:
Federal		184		(43	)
State		0		116
		184		72
	$	187	$	3

Schedule of effective income tax rate

	Years Ended December 31,
	2021			2020
Statutory U.S. income tax rate		(21.00	)%		21.00	%
State taxes, net of federal benefit		(0.16	)%		6.0	%
Permanent differences		(1.31	)%		3.45	%
Change in valuation allowance		(26.32	)%		38.83	%
Change in net operating loss carryforwards and tax credits		16.72	%		(67.58	)%
Prior period adjustment and other		19.72	%		(0.50	)%
Effective income tax rate		(12.35	)%		1.20	%

Schedule of deferred tax assets and liabilities

	Years Ended December 31,
	2021			2020
Deferred tax assets:
Operating loss carryforwards	$	984		$	1,238
R&D Tax Credit		2,233			1,952
Section 263A costs		38			203
Amortization		18			21
Unrealized loss		442			391
Asset reserves:
Bad debts		11			11
Inventory allowance		292			118
Accrued expenses:
Non-qualified stock options		127			175
Compensation		116			64
Warranty		971			927
Deferred tax assets		5,235			5,098
Less valuation allowance		(610	)		(98	)
Total deferred tax assets		4,625			5,000
Deferred tax liabilities:
Depreciation		(509	)		(700	)
Total deferred tax liabilities		(509	)		(700	)
Net deferred tax assets (before unrealized gain)		4,116			4,300
Deferred tax liability: unrealized gain		-			-
Net deferred tax assets	$	4,116		$	4,300