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Debt (Tables)
 3 Months Ended
Jan. 31, 2016
Debt Instrument [Line Items]  
Schedule of Debt [Table Text Block]
Debt as of January 31, 2016 and October 31, 2015, consisted of the following:
 
 
January 31, 2016
 
October 31, 2015
Revolving credit facility
 
$
—

 
$
2,945

Connecticut Development Authority Note
 
2,761

 
2,817

Connecticut Clean Energy and Finance Investment Authority Note
 
6,052

 
6,052

NRG Energy, Inc. Loan Agreement
 
1,286

 
3,763

PNC Energy Capital, LLC Finance Obligation
 
6,826

 
—

State of Connecticut Loan
 
10,000

 
—

Capitalized lease obligations
 
704

 
726

Total debt
 
$
27,629

 
$
16,303

Current portion of long-term debt and finance obligation
 
(1,957
)
 
(7,358
)
Long-term debt
 
$
25,672

 
$
8,945