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Quarterly Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2013 | Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2012 | Jan. 31, 2012 | Oct. 31, 2013 | Oct. 31, 2012 | Oct. 31, 2011
Revenues | $ 55,157 |  | $ 53,707 |  | $ 42,436 |  | $ 36,358 |  | $ 35,420 |  | $ 29,693 |  | $ 24,153 |  | $ 31,337 |  | $ 187,658 | [1] | $ 120,603 | [1] | $ 122,570 | [1]
Gross Profit | 2,597 |  | 4,522 |  | 2,314 |  | (2,311) |  | 878 |  | (2,738) |  | 201 |  | 2,104 |  | 7,122 |  | 445 |  | (12,610) |
Operating Income (Loss) | (6,952) |  | (4,594) |  | (7,197) |  | (11,070) |  | (8,418) |  | (10,511) |  | (7,757) |  | (5,443) |  | (29,813) |  | (32,129) |  | (45,677) |
Net loss | (9,997) |  | (5,814) |  | (7,629) |  | (11,879) |  | (11,519) |  | (10,010) |  | (8,363) |  | (6,014) |  | (35,319) |  | (35,906) |  | (45,974) |
Dividends, Preferred Stock | (800) |  | (800) |  | (800) |  | (800) |  | (800) |  | (800) |  | (801) |  | (800) |  | (3,200) |  | (3,201) |  | (3,200) |
Net Income (Loss) Available to Common Stockholders, Basic | $ (10,500) |  | $ (6,412) |  | $ (8,165) |  | $ (12,481) |  | $ (12,138) |  | $ (10,722) |  | $ (9,093) |  | $ (6,743) |  | $ (37,558) |  | $ (38,696) |  | $ (57,900) |
Earnings Per Share, Basic and Diluted | $ (0.06) | [2] | $ (0.03) | [2] | $ (0.04) | [2] | $ (0.07) | [2] | $ (0.07) | [2] | $ (0.06) | [2] | $ (0.06) | [2] | $ (0.05) | [2] | $ (0.20) | [2] | $ (0.23) |  |  |
[1] | Includes revenue from a related party. Refer to Concentrations in note 1 to the financial statements.
[2] | 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 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 Reference 3: 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 + Details
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