Stock-Based Compensation (Tables)
 6 Months Ended
Jul. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Restricted Stock Units Activity
A summary of the Company’s restricted stock activity for the six months ended July 31, 2018 is as follows:
 
Shares  
Nonvested at January 31, 2018
700,532

Granted
272,849

Vested
(252,830
)
Canceled
(36,051
)
Nonvested at July 31, 2018
684,500
Schedule of Nonvested Performance-based Units Activity
A summary of the Company’s performance based restricted stock activity, assuming maximum achievement, for the six months ended July 31, 2018 is as follows:
 
Shares  
Nonvested at January 31, 2018
170,685

Granted
153,719

Canceled
(19,786
)
Nonvested at July 31, 2018
304,618