Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Accounts Receivable, Net and Unbilled Receivables (Detail)

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Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Accounts Receivable, Net and Unbilled Receivables (Detail) - USD ($)
$ in Thousands
Apr. 30, 2021
Jan. 31, 2021
Receivables [Abstract]    
Accounts receivable, net $ 6,249 $ 6,050
Unbilled receivables 8,420 9,359
Unbilled receivables 5,842 6,340
Total, Balance $ 20,511 $ 21,749