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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Oct. 31, 2014
Jan. 31, 2014
Oct. 31, 2013
Accounts receivable, allowance for doubtful accounts $ 1,004 $ 1,711 $ 1,371
Preferred shares, par value $ 0.0001 $ 0.0001 $ 0.0001
Preferred shares, shares authorized 10,000,000 10,000,000 10,000,000
Preferred shares, shares issued 0 0 0
Common shares, par value $ 0.0001 $ 0.0001 $ 0.0001
Common shares, shares authorized 200,000,000 200,000,000 200,000,000
Common shares, shares issued 134,268,445 147,309,575 147,277,047
Common shares, shares outstanding 134,268,445 147,309,575 147,277,047