XML 56 R40.htm IDEA: XBRL DOCUMENT v3.8.0.1

SPECIAL PURPOSE ENTITIES - Moxie Additional Information (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2015	Jan. 31, 2018
Variable Interest Entity
Interest rate on loan receivable		20.00%
Accrued interest paid to GPI at closing	$ 0.6
Development success fee received	4.3
The total amount of loans made to the VIE from inception of the arrangement plus accrued interest	$ 4.3

X

- Definition

Development Success Fees Contingent Revenue

+ References

No definition available.

+ Details

Name:	agx_DevelopmentSuccessFeesContingentRevenue
Namespace Prefix:	agx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of notes receivable and accrued interest from variable interest entities shared with supplier.

+ References

No definition available.

+ Details

Name:	agx_VariableInterestEntityNotesReceivableAndAccruedInterest
Namespace Prefix:	agx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The stated interest rate of notes receivable from variable interest entities.

+ References

No definition available.

+ Details

Name:	agx_VariableInterestEntityNotesReceivableStatedInterestRate
Namespace Prefix:	agx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_VariableInterestEntityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: