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Selected Balance Sheet Data (Tables)
 3 Months Ended
Dec. 31, 2013
Selected Balance Sheet Data [Abstract]  
Schedule of Selected Balance Sheet Data
(in thousands)
 
December 31, 2013
 
September 30, 2013
Accounts receivable, net:
 
 
 
Accounts receivable
$
24,220

 
$
27,142

Less allowance for doubtful accounts
432

 
313

 
$
23,788

 
$
26,829

Inventories:
 
 
 
Raw materials
$
25,545

 
$
21,171

Work in process
264

 
224

Finished goods
4,670

 
4,745

 
$
30,479

 
$
26,140