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Note 1 - Description of the Company and Operating Environment (Details Textual)	Jun. 30, 2022
Number of Patents Granted	23
Number of Additional Patents In Process	1
Number of Wholly Owned Subsidiaries	3
Number of Locations using TRACER 1000	20
Number of Countries using TRACER 1000	11

X

- Definition

Number of countries where TRACER 1000 is deployed.

+ References

No definition available.

+ Details

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X

- Definition

Number of locations where TRACER 1000 is deployed.

+ References

No definition available.

+ Details

Name:	astc_NumberOfLocationsUsingTracer1000
Namespace Prefix:	astc_
Data Type:	xbrli:integerItemType
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X

- Definition

Represents the number of additional patents in process.

+ References

No definition available.

+ Details

Name:	astc_NumberofAdditionalPatentsInProcess
Namespace Prefix:	astc_
Data Type:	xbrli:integerItemType
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X

- Definition

Represents the number of patents granted.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of subsidiaries to which ATI licenses AMS Technology.

+ References

No definition available.

+ Details

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Namespace Prefix:	astc_
Data Type:	xbrli:integerItemType
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