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Fair Value - Summary of Financial Assets and Liabilities Measured at Fair Value (Detail) - USD ($)
$ in Thousands
Apr. 29, 2017
Jan. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money Market Funds (included in Cash and Cash Equivalents) $ 1,611 $ 2
State and Municipal Obligations (included in Securities Available for Sale) 5,185 6,723
Total assets 6,796 6,725
Swap Contracts (included in Other Liabilities) 393  
Earnout liability (included in Other Liabilities) 1,322  
Total liabilities 1,715  
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money Market Funds (included in Cash and Cash Equivalents) 1,611 2
Total assets 1,611 2
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
State and Municipal Obligations (included in Securities Available for Sale) 5,185 6,723
Total assets 5,185 $ 6,723
Swap Contracts (included in Other Liabilities) 393  
Total liabilities 393  
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Earnout liability (included in Other Liabilities) 1,322  
Total liabilities $ 1,322