Note 14 - Income Taxes (Tables)

12 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Years Ended June 30,
	2023		2022
U.S.	$	1,321,043	$	2,067,224
Foreign		272,975		290,897
Income before income taxes	$	1,594,018	$	2,358,121

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

	Years Ended June 30,
	2023		2022
U.S. operations	$	356,298	$	1,062,895
Foreign operations		72,691		149,505
Total	$	428,989	$	1,212,400

	Years Ended June 30,
	2023			2022
Current:
Federal	$	299,707		$	741,200
States		78,723			242,393
Foreign		87,033			177,118
Total current		465,463			1,160,711
Deferred:
Federal		(22,508	)		69,422
States		376			9,880
Foreign		(14,342	)		(27,613	)
Total deferred		(36,474	)		51,689
Total	$	428,989		$	1,212,400

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

	Years Ended June 30,
	2023			2022
Deferred tax assets:
Property and equipment and intangible assets - U.S.	$	461,680		$	445,629
Net operating loss		982			4,904
Capital loss carryover		971			-
Accruals, reserves and other - U.S.		305,808			297,521
Leasing assets		45,105			137,756
Leasing liabilities		(43,259	)		(132,732	)
Gross deferred tax assets		771,287			753,078
Less valuation allowance		-			-
Total deferred tax assets - U.S.	$	771,287		$	753,078
Deferred tax liabilities:
Intangible assets - foreign	$	(211,406	)	$	(237,844	)
Accruals, reserves and other - foreign		(30,883	)		(22,709	)
Total deferred tax liabilities - foreign	$	(242,289	)	$	(260,553	)
Total net deferred tax assets	$	528,998		$	492,525

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

	Years Ended June 30,
	2023			2022
Federal tax expense (benefit) at statutory rate	$	334,950		$	495,287
State income taxes		62,567			201,369
Permanent differences		73,142			371,987
Foreign tax credit		(57,036	)		(58,413	)
Change in valuation allowance		-			-
Foreign rate differential		15,366			202,170
Total tax expense	$	428,989		$	1,212,400

	Years Ended June 30,
	2023			2022
Federal tax expense (benefit) at statutory rate		21	%		21	%
State income taxes		3.92	%		8.54	%
Permanent differences *	4.59		%		20.6	%
Foreign rate differential		0.96	%		8.57	%
Foreign tax credit		(3.58	)%		(2.48	)%
Change in valuation allowance		0	%		0	%
Total tax expense		26.89	%		56.23	%

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

Balance at June 30, 2022	$	314,932
Additions based on tax positions taken during a prior period		12,597
Reductions based on tax positions taken during a prior period		-
Additions based on tax positions taken during the current period		-
Reductions based on tax positions taken during the current period		-
Reductions related to settlement of tax matters		-
Reductions related to a lapse of applicable statute of limitations		-
Balance at June 30, 2023	$	327,530