Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Revenues:
Product sales	$ 25,073	$ 33,418
Service agreements and license revenues	6,320	3,871
Advanced technologies contract revenues	2,089	4,381
Total revenues	33,482	41,670
Costs of revenues:
Cost of product sales	24,389	30,348
Cost of service agreements and license revenues	6,851	3,568
Cost of advanced technologies contract revenues	2,408	3,740
Total costs of revenues	33,648	37,656
Gross (loss) profit	(166)	4,014
Operating expenses:
Administrative and selling expenses	6,040	5,640
Research and development expenses	5,311	3,504
Total costs and expenses	11,351	9,144
Loss from operations	(11,517)	(5,130)
Interest expense	(845)	(664)
Other income (expense), net	688	1,680
Loss before provision for income taxes	(11,674)	(4,114)
Provision for income taxes	(105)	(40)
Net Loss	(11,779)	(4,154)
Net loss attributable to noncontrolling interest	67	88
Net loss attributable to FuelCell Energy, Inc.	(11,712)	(4,066)
Preferred stock dividends	(800)	(800)
Net loss attributable to common shareholders	$ (12,512)	$ (4,866)
Loss per share basic and diluted
Net loss per share attributable to common shareholders	$ (0.48)	$ (0.20)
Weighted Average Number of Shares Outstanding, Basic and Diluted	26,246,271	23,798,744