XML 64 R52.htm IDEA: XBRL DOCUMENT
v3.21.2

CASH DIVIDENDS (Details) - $ / shares |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 30, 2021 | Jun. 24, 2021 | Apr. 30, 2021 | Apr. 14, 2021 | Jul. 31, 2020 | Apr. 30, 2020 | Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2021 | Jul. 31, 2020
CASH DIVIDENDS |  |  |  |  |  |  |  |  |  |
Regular cash dividend declared per common stock |  | $ 0.25 |  | $ 0.25 |  |  | $ 0.25 | $ 1.25 | $ 0.50 | $ 1.50
Special cash dividend paid per common stock |  |  |  |  | $ 1.00 |  |  |  |  |
Regular cash dividend paid per common stock | $ 0.25 |  | $ 0.25 |  | $ 0.25 | $ 0.25 |  |  |  |

X
- Definition Aggregate special dividends paid during the period for each share of common stock outstanding. + References No definition available. + Details
Name: | agx_CommonStockSpecialDividendsPerShareCashPaid
Namespace Prefix: | agx_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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