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Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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Oct. 31, 2016 | Jul. 31, 2016 | Apr. 30, 2016 | Jan. 31, 2016 | Oct. 31, 2015 | Jul. 31, 2015 | Apr. 30, 2015 | Jan. 31, 2015 | Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
Revenues |  | $ 24,473 | $ 21,716 | $ 28,581 | $ 33,482 | $ 51,451 | $ 41,356 | $ 28,600 | $ 41,670 | $ 108,252 | $ 163,077 | $ 180,293 |
Gross (loss) profit |  | (468) | 434 | (157) | (166) | 3,144 | 3,595 | 2,023 | 4,014 | (357) | 12,776 | 13,726 |
Operating Income (Loss) |  | (11,805) | (10,323) | (12,708) | (11,517) | (7,866) | (7,103) | (8,793) | (5,130) | (46,353) | (28,892) | (27,311) |
Net loss |  | (12,948) | (11,067) | (15,414) | (11,779) | (8,905) | (6,628) | (9,997) | (4,154) | (51,208) | (29,684) | (38,883) | $ (38,883)
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 |  | $ (13,662) | $ (11,810) | $ (16,173) | $ (12,512) | $ (9,660) | $ (7,339) | $ (10,694) | $ (4,866) | $ (54,157) | $ (32,559) | $ (41,325) |
Earnings Per Share, Basic and Diluted | [1] | $ (0.41) | $ (0.38) | $ (0.56) | $ (0.48) | $ (0.38) | $ (0.29) | $ (0.44) | $ (0.20) | $ (1.82) | $ (1.33) |  |
[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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition 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. + References No definition available. + Details
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