Note 5 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

	Year Ended December 31,
	2022			2021			2020
Current
Federal	$	552		$	131		$	( 2,006	)
State		23			84			( 2	)
Total Current		575			215			( 2,008	)
Federal		( 959	)		( 704	)		( 13	)
State		428			333			( 326	)
Total Deferred		( 531	)		( 371	)		( 339	)
Income Tax Provision	$	44		$	( 156	)	$	( 2,347	)

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

	Year Ended December 31,
	2022			2021			2020
Federal statutory rate		21.0	%		21.0	%		21.0	%
State income taxes, net of federal benefit		12.0	%		10.4	%		4.4	%
Permanent differences		(0.4%	)		47.6	%		0.0	%
Stock based compensation		0.5	%		1.4	%		(0.4%	)
Federal R&D Credits		8.9	%		0.0	%		1.6	%
Foreign taxes, net of federal benefit		0.0	%		(10.9%	)		(2.2%	)
Difference in tax rate for carryback claim		0.0	%		0.0	%		13.4	%
Increase/(decrease) in valuation reserve		(46.2%	)		(50.5%	)		0.0	%
Effective tax rate		-4.2	%		19.0	%		37.8	%

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

	As of December 31,
	2022			2021
Deferred Tax Assets
Allowance for doubtful accounts	$	21		$	21
Accrued expenses		414			129
Stock-based compensation		381			325
R&D tax credits		1,086			1,083
Operating lease		701			944
Capitalized research expenses		404			-
NOL carryforward		72			219
Gross Deferred Tax Assets		3,079			2,721
Valuation Allowance		( 895	)		( 414	)
Deferred Tax Assets After Valuation Allowance		2,184			2,307
Deferred Tax Liabilities
Excess of tax over book depreciation and amortization		( 783	)		( 1,249	)
Prepaid expenses		( 78	)		( 61	)
Operating lease		( 632	)		( 837	)
Gross Deferred Tax Liabilities		( 1,493	)		( 2,147	)
Net Deferred Tax Assets	$	691		$	160