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Stockholders' Equity (Narrative) (Details) (USD $)
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3 Months Ended | |
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Dec. 31, 2014
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Dec. 31, 2013
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| Stockholders' Equity [Abstract] | ||
| Stock-based compensation expense | $ 254,000us-gaap_AllocatedShareBasedCompensationExpense | $ 525,000us-gaap_AllocatedShareBasedCompensationExpense |
| 2008 Plan [Member] | ||
| Equity, Class of Treasury Stock [Line Items] | ||
| Number of shares authorized to be repurchased |
350,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = alco_Plan2008Member |
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| 2013 Plan [Member] | ||
| Equity, Class of Treasury Stock [Line Items] | ||
| Number of shares authorized to be repurchased |
105,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = alco_Plan2013Member |
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- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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