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EXCEL - IDEA: XBRL DOCUMENT - AMERICAN LOCKER GROUP INCFinancial_Report.xls
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v2.4.0.6
Consolidated Balance Sheets (Parenthetical) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 166,000 $ 149,000
Common stock, par value $ 1.00 $ 1.00
Common stock, shares authorized 4,000,000 4,000,000
Common stock, shares issued 1,875,985 1,871,999
Common stock, shares outstanding 1,683,985 1,679,999
Treasury stock, shares 192,000 192,000