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Significant Accounting Policies (Details) - Schedule of contract liabilities - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Schedule Of Contract Liabilities Abstract
Opening balance	$ 333,200	$ 380,000
Billings	706,473	627,780
Less revenue recognized from continuing operations	(697,001)	(674,580)
Closing balance	$ 342,672	$ 333,200

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

No definition available.

+ Details

Name:	amst_ContractWithCustomersLiability
Namespace Prefix:	amst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Revenue recognized from continuing operations.

+ References

No definition available.

+ Details

Name:	amst_RevenueRecognizedFromContinuingOperations
Namespace Prefix:	amst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	amst_ScheduleOfContractLiabilitiesAbstract
Namespace Prefix:	amst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130532-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant