Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Years Ended December 31,
	2024			2023
Current:
Federal	$	489		$	25
State		1,199			29
		1,688			54
Deferred:
Federal		(1,581	)		—
State		(1,091	)		—
		(2,672	)		—
	$	(984	)	$	54

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Years Ended December 31,
	2024			2023
Statutory U.S. income tax rate		21.00	%		21.00	%
State taxes, net of federal benefit		9.42	%		(1.34	)%
Permanent differences		0.84	%		(0.87	)%
Change in valuation allowance		(48.79	)%		(48.01	)%
Change in tax credits		(4.59	)%		16.59	%
Uncertain tax position		19.25	%		—
Impact from rate changes		(10.48	)%		10.14	%
Effective income tax rate		(13.35	)%		(2.49	)%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	Years Ended December 31,
	2024			2023
Deferred tax assets:
Operating loss carryforwards	$	—		$	1,857
R&D Tax Credits		300			2,779
Section 263A costs		47			56
Additional K-1 temporary adjustment		1			—
Capitalized research and development expenses		3,389			1,029
Interest		—			34
Net ROU asset and lease liability		42			53
Unrealized loss		—			628
Capital loss carryforward		802			—
Asset reserves:
Bad debts		13			12
Inventory allowance		454			430
State depreciation		117			—
Accrued expenses:
Non-qualified stock options		463			343
Compensation		122			107
Deferred warranty revenue		2,638			1,934
Deferred tax assets		8,388			9,262
Less valuation allowance		(802	)		(4,398	)
Total deferred tax assets		7,586			4,864
Deferred tax liabilities:
Depreciation		(798	)		(748	)
Total deferred tax liabilities		(798	)		(748	)
Net deferred tax assets	$	6,788		$	4,116

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2024
Balance at January 1		-
Additions based on tax positions related to the current year		154
Additions for tax positions of prior years		1,265
Balance at December 31,		1,419