Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.22.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
Income Taxes Disclosure [Line Items]      
Cash dividends $ 1,800 $ 4,400  
Deferred tax assets, operating loss carry forwards, domestic   137,600  
Deferred tax assets, operating loss carry forwards, state and local   94,800  
Deferred tax assets, operating loss carry forwards, foreign   $ 6,400  
Operating loss carry forwards, expiry beginning year   2022  
Deferred tax assets, tax credit carry forwards, foreign   $ 1,900  
Tax credit carry forward with an unlimited carryforward period   200  
Valuation allowance 44,920 43,439  
Valuation allowance increased (decreased) (1,500) (5,200)  
Unrecognized tax benefits 3,454 4,632 $ 4,306
Total gross interest accrued 100 100  
Unrecognized tax benefits that would impact effective tax rate 100 100  
Deferred Revenue, Long-Term [Member]      
Income Taxes Disclosure [Line Items]      
Unrecognized tax benefits $ 3,500    
Federal [Member]      
Income Taxes Disclosure [Line Items]      
Deferred tax assets, tax credit carry forwards, research   3,200  
State and Local Jurisdiction [Member]      
Income Taxes Disclosure [Line Items]      
Deferred tax assets, tax credit carry forwards, research   1,800  
Deferred tax assets tax credit carry forward investment   $ 200