XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.22.1

COMMITMENTS - Warranties (Details) | 3 Months Ended
--- | ---
Apr. 30, 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: |