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v3.22.2.2

COMMITMENTS - Warranties (Details) | 6 Months Ended
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Jul. 31, 2022
Minimum [Member] |
Warranty period | P9M
Maximum [Member] |
Warranty period | P24M

X
- Definition Represents the information pertaining to warranty provisions covering defects in equipment, materials etc.. after the completion of construction. + References No definition available. + Details
Name: | agx_WarrantyPeriodForConstructionContracts
Namespace Prefix: | agx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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: |