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Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
		Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Revenues		$ 51,451	$ 41,356	$ 28,600	$ 41,670	$ 54,409	$ 43,176	$ 38,274	$ 44,434	$ 163,077	$ 180,293	$ 187,658
Gross Profit		3,144	3,595	2,023	4,014	5,955	3,961	1,611	2,199	12,776	13,726	7,122
Operating Income (Loss)		(7,866)	(7,103)	(8,793)	(5,130)	(4,968)	(6,000)	(8,773)	(7,570)	(28,892)	(27,311)	(29,813)
Net loss		(8,905)	(6,628)	(9,997)	(4,154)	(4,890)	(7,139)	(16,039)	(10,815)	(29,684)	(38,883)	(35,319)
Dividends, Preferred Stock		(800)	(800)	(800)	(800)	(800)	(800)	(800)	(800)	(3,200)	(3,200)	(3,200)
Net Income (Loss) Available to Common Stockholders, Basic		$ (9,660)	$ (7,339)	$ (10,694)	$ (4,866)	$ (5,500)	$ (7,778)	$ (16,643)	$ (11,404)	$ (32,559)	$ (41,325)	$ (37,558)
Earnings Per Share, Basic and Diluted	[1]	$ (0.38)	$ (0.29)	$ (0.44)	$ (0.20)	$ (0.26)	$ (0.36)	$ (0.82)	$ (0.68)	$ (1.33)	$ (2.02)
[1] The full year net loss to common shareholders basic and diluted share may not equal the sum of the quarters due to weighting of outstanding shares.

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- Definition

Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

+ References

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The net result for the period of deducting operating expenses from operating revenues.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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