XML 28 R16.htm IDEA: XBRL DOCUMENT
v3.10.0.1

CASH DIVIDENDS | 6 Months Ended
--- | ---
Jul. 31, 2018
CASH DIVIDENDS |
CASH DIVIDENDS | NOTE 11 — CASH DIVIDENDS On June 25, 2018, the Company’s board of directors declared a regular quarterly cash dividend in the amount of $0.25 per share of common stock, which was paid on July 31, 2018 to stockholders of record at the close of business on July 24, 2018. The Company’s board of directors declared its first regular quarterly cash dividend of $0.25 per share of common stock on April 10, 2018, which was paid on April 30, 2018 to stockholders of record on April 23, 2018.

X
- Definition Payment of special cash dividends. + References No definition available. + Details
Name: | agx_PaymentOfSpecialCashDividendsTextBlock
Namespace Prefix: | agx_
Data Type: | nonnum:textBlockItemType
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