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Income Tax (Details 2) - USD ($)
$ in Thousands
Jan. 31, 2017
Jan. 31, 2016
Deferred Taxes Assets    
Net operating loss carryforwards, Assets $ 10,516 $ 9,182
Inventory, Assets 3,782 3,103
Unprocessed returns, Assets 1,200 1,538
Receivables allowances, Assets 1,151 847
Deferred compensation, Assets 18,955 16,286
Capital loss carryforwards, Assets 389 216
Other provisions/accruals, Assets 207 200
Miscellaneous, Assets 955 992
Total, Assets 37,155 32,364
Valuation allowance, Assets (8,714) (8,089)
Total deferred tax assets and liabilities 28,441 24,275
Deferred Taxes Liabilities    
Unrepatriated earnings, Liabilities 2,956 2,877
Depreciation / amortization, Liabilities 1,245 1,234
Total, Liabilities 4,201 4,111
Total deferred tax assets and liabilities $ 4,201 $ 4,111