Note 1 - General Information (Details Textual) shares in Thousands	Dec. 05, 2022 shares	Mar. 31, 2024 $ / shares	Jun. 30, 2023 $ / shares
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares		$ 0.001	$ 0.001
Stock Issued During Period, Shares, Reverse Stock Splits (in shares) \| shares	0
Number of Patents Granted		17
Number of Locations using TRACER 1000		30
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	30

Number of locations where TRACER 1000 is deployed.

No definition available.

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- Definition

Represents the number of patents granted.

+ References

No definition available.

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-4

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