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Dispositions (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 12, 2014
Oct. 31, 2015
Oct. 31, 2015
Jan. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Sale price $ 15,000      
Proceeds from business disposition 4,400      
Note receivable 7,500      
Disposal Group, Including Discontinued Operations, Notes Receivable, First Periodic Payment Due 1,250      
Disposal Group, Including Discontinued Operations, Notes Receivable, Periodic Payment Due After First installment $ 600      
Promissory note interest rate 6.00%      
Promissory note interest rate, 1 year after 7.00%      
Promissory note interest rate, 2 year after 8.00%      
Promissory note interest rate, 3 years after 9.00%      
Notes Receivable, Fair Value Disclosure   $ 7,200 $ 7,200 $ 7,000
Interest Income, Other   $ 100 $ 300