Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Tax effect on adjustment to minimum pension liability	$ 3,514	$ 3,499

Other comprehensive income minimum pension liability adjustment tax.

No definition available.

Name:	algi_OtherComprehensiveIncomeMinimumPensionLiabilityAdjustmentTax
Namespace Prefix:	algi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration