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Income Taxes (Details) (USD $)
 3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2012
Sep. 30, 2011
Current:                    
Federal                 $ 51,000 $ 87,000
State                 168,000 207,000
Total current 137,000 513,000 1,405,000 325,000 (2,100,000) 409,000 (1,472,000) 405,000 2,380,000 (2,758,000)
Deferred                    
Federal                 2,161,000 (1,328,000)
State                   (1,724,000)
Total deferred                 2,161,000 (3,052,000)
Income tax expense (benefit)                 $ 2,380,000 $ (2,758,000)