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Note 7. Goodwill (Detail) - Changes in the Carrying Amount of Goodwill (USD $)
In Thousands, unless otherwise specified
1 Months Ended 12 Months Ended
May 31, 2012
Sep. 30, 2012
Sep. 30, 2011
Balance at beginning of period   $ 20,122 $ 20,036
Acquisitions   1,175  
Contingent acquisition payments   248 3
Purchase price allocation adjustments 142   83
Balance at end of period   $ 21,545 $ 20,122