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Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Jan. 31, 2015
Income Tax Contingency [Line Items]      
Tax expense (benefits) recorded in additional paid in capital $ 300,000 $ 0 $ 1,300,000
Effective tax rate for continuing operations 31.70% 33.80% 27.10%
Deferred tax liabilities $ 4,201,000 $ 4,111,000  
Deferred tax liabilities, undistributed foreign earnings 2,956,000 2,877,000  
Unrecognized tax benefits which would impact the Company's effective tax rate 2,600,000 2,400,000 $ 2,500,000
Accrued interest and penalties net of tax benefits 700,000 600,000 700,000
Accrued interest and penalties net of tax benefits 100,000 $ 100,000 $ 100,000
Domestic Country      
Income Tax Contingency [Line Items]      
Operating Loss carryforwards 0    
State and Local Jurisdiction [Member]      
Income Tax Contingency [Line Items]      
Operating Loss carryforwards 9,300,000    
Operating loss carryforwards, valuation allowance 100,000    
Foreign Tax Authority      
Income Tax Contingency [Line Items]      
Operating Loss carryforwards 38,100,000    
Operating loss carryforwards, valuation allowance 8,600,000    
Deferred tax liabilities 3,000,000    
Pre-2013 foreign earnings earmarked for future repatriation 12,700,000    
Deferred tax liabilities, undistributed foreign earnings 307,000,000    
Swiss subsidiary      
Income Tax Contingency [Line Items]      
Operating Loss carryforwards $ 15,900,000    
Minimum      
Income Tax Contingency [Line Items]      
Expiration periods 1 year    
Maximum      
Income Tax Contingency [Line Items]      
Expiration periods 19 years    
Possible decrease in unrecognized tax benefits within the next 12 months $ 600,000