v3.22.2.2

Lease Agreements (Details) - Financial Institution [Member] | 12 Months Ended
--- | ---
Jun. 30, 2022 USD ($)
Lease Agreements (Details) [Line Items] |
Monthly lease payment | $ 22,810
Minimum [Member] |
Lease Agreements (Details) [Line Items] |
Monthly lease payment | 245
Maximum [Member] |
Lease Agreements (Details) [Line Items] |
Monthly lease payment | $ 9,664

X
- References No definition available. + Details
Name: | gaxy_LeaseAgreementsDetailsLineItems
Namespace Prefix: | gaxy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Monthly lease payment. + References No definition available. + Details
Name: | gaxy_MonthlyLeasePayment
Namespace Prefix: | gaxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=gaxy_FinancialInstitutionMember
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: |