XML 89 R73.htm IDEA: XBRL DOCUMENT v3.19.2

Employee Benefit Plans (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2019 USD ($) shares
Defined Benefit Plan Disclosure [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | shares	876,478
United States
Defined Benefit Plan Disclosure [Line Items]
Mandatory employer contributions according to labor and social security laws and regulations, percent	7.70%
United States | Retirement Plan, 401-K [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee maximum salary deferral contribution, percent	100.00%
Company contributions to retirement plan | $	$ 0
China | Minimum
Defined Benefit Plan Disclosure [Line Items]
Mandatory employer contributions according to labor and social security laws and regulations, percent	12.00%
China | Maximum
Defined Benefit Plan Disclosure [Line Items]
Mandatory employer contributions according to labor and social security laws and regulations, percent	20.00%
Taiwan
Defined Benefit Plan Disclosure [Line Items]
Mandatory employer contributions according to labor and social security laws and regulations, percent	6.00%

X

- Definition

Defined Contribution Plan, Maximum Annual Salary Deferral Contribution by Employee, Percent

+ References

No definition available.

+ Details

Name:	aosl_DefinedContributionPlanMaximumAnnualSalaryDeferralContributionByEmployeePercent
Namespace Prefix:	aosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Mandatory Employer Contributions According to Labor and Social Security Laws and Regulations

+ References

No definition available.

+ Details

Name:	aosl_MandatoryEmployerContributionsAccordingToLaborAndSocialSecurityLawsAndRegulations
Namespace Prefix:	aosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanNameAxis=aosl_RetirementPlan401KMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_CN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_TW
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: