Note 14 - Income Taxes - Reconciliation of Income Tax Rate (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Federal statutory rate, amount		$ 6,610	$ 6,937	$ 6,951
Federal statutory rate, rate		21.00%	21.00%	21.00%
State and local taxes, net of federal benefit (a), amount	[1]	$ 1,135	$ 1,146	$ 1,402
State and local taxes, net of federal benefit (a), rate	[1]	3.60%	3.50%
Foreign tax effects, rate				4.20%
Transaction costs, amount		$ 830	$ 220	$ 0
Transaction costs, rate		2.70%	0.60%	0.00%
Other, amount		$ (245)	$ 291	$ 249
Other, rate		(0.80%)	0.90%	0.80%
Effects of cross-border tax laws, amount		$ (32)	$ 155	$ (47)
Effects of cross-border tax laws, rate		(0.10%)	0.50%	(0.10%)
Tax credits, amount		$ (429)	$ (284)	$ (353)
Tax credits, rate		(1.40%)	(0.90%)	(1.10%)
Officer's compensation, amount		$ 3,886	$ 591	$ 615
Officer's Compensation, rate		12.50%	1.80%	1.80%
Non-taxable or non-deductible items, other, amount		$ 129	$ 124	$ 49
Non-taxable or non-deductible items, other, rate		0.40%	0.40%	0.10%
Changes in unrecognized tax (benefit) expense, amount		$ (58)	$ 122	$ 177
Changes in unrecognized tax (benefit) expense, rate		(0.20%)	0.30%	0.50%
Stock-based compensation, amount		$ (4,259)	$ (927)	$ (763)
Stock-based compensation, rate		(13.50%)	(2.80%)	(2.30%)
Total provision for income taxes		$ 8,895	$ 8,655	$ 8,122
Effective tax rate, rate		28.40%	26.20%	24.50%
Canada Revenue Agency [Member] | Income Tax Jurisdiction, Foreign [Member]
Foreign tax effects, rate		0.80%	1.00%	0.10%
Transaction costs, amount		$ 884	$ 0	$ 0
Transaction costs, rate		2.80%	0.00%	0.00%
Statutory income tax rate differential, amount		$ 247	$ 299	$ 39
Other, amount		$ 156	$ 0	$ (208)
Other, rate		0.50%	0.00%	(0.60%)
Other Foreign Jurisdictions [Member]
Foreign tax effects, rate		0.10%	(0.10%)	0.10%
Statutory income tax rate differential, amount		$ 41	$ (19)	$ 11

[1] In 2026, state and local income taxes in California, Florida, Illinois, Massachusetts, New Jersey, Rhode Island, Texas, Blue Ash (OH) comprise the majority of the state and local income taxes, net of federal effect category.