Pension Benefits (Details Textual) (USD $)	3 Months Ended
Mar. 31, 2013
Canadian Plan [Member]
Pension Benefits (Textual) [Abstract]
Contribution of employee compensation	3.00%
Employees elective contribution	50.00%
Maximum contribution of employee compensation	5.00%
US Plan [Member]
Pension Benefits (Textual) [Abstract]
Significant transfers in or out of Level 1 or Level 2 fair value measurements	0

Defined contribution plan employee elective employer contribution percent.

No definition available.

Name:	algi_DefinedContributionPlanEmployeeElectiveEmployerContributionPercent
Namespace Prefix:	algi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	algi_PensionBenefitsTextualAbstract
Namespace Prefix:	algi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents [net] transfers in to and out of assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration