Shareholders' Equity (Details) (USD $)	3 Months Ended
	Apr. 30, 2014	Jan. 31, 2014	Jan. 31, 2013	Mar. 07, 2014	Jan. 23, 2014	Oct. 31, 2013	Jun. 25, 2013
Debt Conversion, Original Debt, Amount	$ 22,000,000	$ 15,000,000
Senior Unsecured Convertible Notes		23,000,000		1,000,000		38,000,000	38,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities	17,500,000	9,677,425
Debt Instrument, Convertible, Conversion Ratio		645.1613
Debt Instrument, Convertible, Conversion Price		$ 1.55					$ 1.55
Common stock issued relating to full exercise of an over allottment option					3,300,000
Price Per Share for New Common Stock Issuance					$ 1.25
Stock Issued During Period, Shares, New Issues		25,300,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		5,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		2.18
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest	26,334,000	(13,192,000)
Stock Issued During Period, Value, Conversion of Convertible Securities		12,960,000	0
Stock Issued During Period, Value, Other		4,240,000
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures		621,000
Stock Issued During Period, Value, New Issues		33,246,000
Stock Issued During Period, Value, Employee Benefit Plan		94,000
Dividends, Preferred Stock		(800,000)	(800,000)
Foreign currency translation adjustments		(20,000)	76,000
Net Loss		(10,815,000)	(11,879,000)
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest		26,334,000
Proceeds from Issuance of Common Stock		33,755,000	0
Common Stock, Capital Shares Reserved for Future Issuance		5,000,000
Public stock offering [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from Issuance of Common Stock		29,500,000
Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest		(12,412,000)
Stock Issued During Period, Value, Conversion of Convertible Securities		12,960,000
Stock Issued During Period, Value, Other		4,240,000
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures		621,000
Stock Issued During Period, Value, New Issues		33,246,000
Stock Issued During Period, Value, Employee Benefit Plan		94,000
Dividends, Preferred Stock		(800,000)
Foreign currency translation adjustments		(20,000)
Net Loss		(10,604,000)
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest		27,325,000
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest		(780,000)
Net Loss		(211,000)
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest		(991,000)
Common Stock [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues		2,704,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from Issuance of Common Stock		$ 3,700,000
Convertible debt make-whole obligation [Member]
Stock Issued During Period, Shares, Other		2,344,080
Interest Expense [Member]
Stock Issued During Period, Shares, Other		26,674