Note 17 - Concentration of Customers - Revenue and Trade Accounts Receivables (Details) - Customer Concentration Risk [Member]	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Revenue Benchmark [Member] \| Customer A [Member]
Concentration risk	33.50%	40.30%
Revenue Benchmark [Member] \| Customer B [Member]
Concentration risk	14.70%	5.50%
Revenue Benchmark [Member] \| Customer C [Member]
Concentration risk	11.20%	19.40%
Accounts Receivable [Member] \| Customer A [Member]
Concentration risk	31.20%	36.00%
Accounts Receivable [Member] \| Customer B [Member]
Concentration risk	24.00%	8.80%
Accounts Receivable [Member] \| Customer C [Member]
Concentration risk	15.90%	24.20%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-21

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-20

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482861/275-10-50-18

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482861/275-10-50-20

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration