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Note 4 Debt (Tables)
6 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
 
As of
 
March 31,
2018
 
September 30,
2017
 
(In thousands)
Senior secured notes due 2019
375,000

 
375,000

Non-interest bearing promissory notes
21,652

 
19,863

 Total long-term debt
396,652

 
394,863

Less: Current portion of non-interest bearing promissory notes
3,416

 
3,416

Long-term debt
$
393,236

 
$
391,447