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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)
Jan. 28, 2017
Jan. 30, 2016
Deferred tax assets:    
Accruals $ 3,208,000 $ 3,383,000
Inventory valuation 898,000 754,000
State tax credit carryforwards 190,000  
Deferred rent and other 11,667,000 10,045,000
Total deferred tax assets 15,963,000 14,182,000
Valuation allowance for deferred tax assets (56,000) 0
Net deferred tax assets 15,907,000 14,182,000
Deferred tax liabilities:    
Depreciation (14,421,000) (14,887,000)
Prepaid assets (767,000) (637,000)
Total deferred tax liabilities (15,188,000) (15,524,000)
Net deferred tax (liabilities)   $ (1,342,000)
Net deferred tax assets $ 719,000