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Selected Balance Sheet Data (Tables)
3 Months Ended
Dec. 31, 2012
Selected Balance Sheet Data [Abstract]  
Schedule of Selected Balance Sheet Data
 
December 31, 2012
 
September 30, 2012
Accounts receivable, net:
 
 
 
Accounts receivable
$
25,092

 
$
24,929

Less allowance for doubtful accounts
388

 
295

 
$
24,704

 
$
24,634

Inventories:
 
 
 
Raw materials
$
19,953

 
$
18,159

Work in process
191

 
428

Finished goods
5,216

 
5,848

 
$
25,360

 
$
24,435