Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.1.9
Subsequent Events (Details) (USD $)
May 11, 2015
Mar. 31, 2015
Subsequent Event [Member] | Silver Nip [Member]    
Subsequent Event [Line Items]    
Amount of credit facility $ 7,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ dei_LegalEntityAxis
= alco_SilverNipMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember 		 
Working Capital Line of Credit [Member]    
Subsequent Event [Line Items]    
Amount of credit facility   $ 70,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= alco_WorkingCapitalLineOfCreditMember