Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.21.1
Stockholders' Equity - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Mar. 04, 2019
Feb. 28, 2019
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Aug. 08, 2019
Jan. 31, 2017
Jan. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Preferred stock, shares authorized     5,000,000          
Preferred stock, shares issued     0          
Expected dividend yield     0.00% 0.00%        
Options outstanding     1,672,546 2,768,466        
Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value     $ 0.81 $ 1.94        
Rights Agreement [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Preferred shares purchase rights, declared date as dividend Mar. 04, 2019              
Preferred shares purchase rights for each common stock 1              
Preferred shares purchase rights, record date as dividend Mar. 15, 2019              
Maximum [Member] | Rights Agreement [Member] | Seachange International, Inc [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Ownership percentage           25.00%    
Deferred Stock Units [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Number of stock units granted     144,928 774,931        
Market Based Options [Member] | Former CEO [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Options outstanding             800,000 800,000
Fair value of options outstanding     $ 2,100,000          
Service period required to be fulfilled     3 years          
Reversal of stock-based compensation expense   $ 500,000            
Performance Stock Units (PSUs) [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Number of stock units granted and released     182,864          
Restricted Stock Units And Deferred Stock Units                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized     $ 700,000          
Share based compensation arrangement by share based payment award expected weighted average recognition period     1 year          
Restricted Stock Units [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Number of stock units granted     276,451 128,961        
Stock Options [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized     $ 400,000          
Share based compensation arrangement by share based payment award expected weighted average recognition period     1 year 3 months 21 days          
Performance Stock Units [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized     $ 100,000          
Share based compensation arrangement by share based payment award expected weighted average recognition period     1 year 3 months 10 days          
2011 Compensation and Incentive Plan [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, Description     Option awards may be granted to employees at an exercise price per share of not less than 100% of the fair market value per common share on the date of the grant.          
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent     100.00%          
Share-based compensation arrangement by share based payment award, Option award expiration period     10 years          
2011 Compensation and Incentive Plan [Member] | Minimum [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     1 year          
2011 Compensation and Incentive Plan [Member] | Maximum [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     3 years          
2011 Compensation and Incentive Plan [Member] | Stock Compensation Plan                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, number of shares authorized     9,300,000          
Share-based compensation arrangement by share-based payment award, number of shares available for grant     3,286,731          
2011 Compensation and Incentive Plan [Member] | Deferred Stock Units [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     1 year          
2015 Employee Stock Purchase Plan [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, number of shares available for grant     1,075,024          
Share-based compensation arrangement by share-based payment award, Description     On each purchase date, eligible employees can purchase our stock at a price per share equal to 85% of the closing price of our common stock on the exercise date, but no less than par value          
Discount percentage from market price of stock     85.00%          
Shares purchased under ESPP     5,702 14,057        
2015 Employee Stock Purchase Plan [Member] | Maximum [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, number of shares authorized     1,150,000          
Long Term Incentive Program | Performance Stock Units (PSUs) [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     3 years 3 years 3 years      
Service period required to be fulfilled         3 years      
Number of stock units granted     369,292          
Long Term Incentive Program | Restricted Stock Units And Deferred Stock Units | Minimum [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     1 year          
Long Term Incentive Program | Restricted Stock Units And Deferred Stock Units | Maximum [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by Share-based payment award, vesting period     3 years          
Series A Participating Preferred Stock [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Preferred stock, shares designated     $ 1,000,000          
Series A Participating Preferred Stock [Member] | Rights Agreement [Member]                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Preferred shares, dividend payment terms Each Right entitles the registered holder, under certain circumstances, to purchase from us one one-hundredth of a share of Series A Participating Preferred Stock, par value $0.01 per share (the “Preferred Shares”), of the Company, at a price of $8.00 per one one-hundredth of a Preferred Share represented by a Right (the “Purchase Price”), subject to adjustment.              
Preferred stock, par value $ 0.01              
Preferred stock, purchase price 8.00              
Preferred stock, redemption price per share $ 0.0001