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Fair Value - Schedule of Company's Long-Term Debt Including the Current Portion Not Reflected in Financial Statements at Fair Value (Detail) - USD ($)
$ in Thousands
Apr. 30, 2022
Jan. 31, 2022
Fair Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-Term debt and related current maturities $ 9,005 $ 9,255
Fair Value [Member] | Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-Term debt and related current maturities 9,005 9,255
Carrying Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-Term debt and related current maturities $ 9,000 $ 9,250