Debt and Leases (Tables)

9 Months Ended

Jul. 31, 2014

Debt Instrument [Line Items]

Schedule of Debt [Table Text Block]

As of July 31, 2014 and October 31, 2013, debt consisted of the following:

	July 31, 2014			October 31, 2013
Revolving credit facility	$	945		$	6,500
Senior Unsecured Convertible Notes	—			38,000
Connecticut Development Authority Note	3,086			3,246
Connecticut Clean Energy and Finance Investment Authority Note	6,052			5,744
Capitalized lease obligations	713			497
Total debt	10,796			53,987
Unamortized debt discount	—			(3,106		)
	10,796			50,881
Current portion of long-term debt	(1,404		)	(6,931		)
Long-term debt	$	9,392		$	43,950

Schedule of future minimum debt and lease payments [Text Block]

Aggregate annual principal payments under our loan agreements and capital lease obligations, excluding payments relating to the revolving credit facility, for the years subsequent to July 31, 2014 are as follows:

Year 1	$	459
Year 2	500
Year 3	401
Year 4	2,434
Year 5	6
Thereafter	6,051
	$	9,851