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Prior Period Revision (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Sep. 30, 2013
Retained earnings and long-term deferred tax asset error correction $ 319  
Deferred tax assets - non-current 7,664 6,151
Total assets 297,732 300,272
Retained earnings 117,732 116,407
Total stockholders' equity 273,352 274,585
Total liabilities and stockholders' equity 297,732 300,272
Previously Reported
    
Deferred tax assets - non-current   5,832
Total assets   299,953
Retained earnings   116,088
Total stockholders' equity   274,266
Total liabilities and stockholders' equity   $ 299,953