STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Jan. 31, 2019

Stockholders' Equity Note [Abstract]

Schedule of restricted stock

Restricted Stock Units

		Weighted Average
	Awards	Grant Date
	Outstanding	Fair Value
Unvested as of January 31, 2016	2,048,883	$	30.79
Granted	630,642	$	25.82
Vested	(678,164)	$	22.43
Canceled	(2,500)	$	17.95
Unvested as of January 31, 2017	1,998,861	$	31.70
Granted	279,479	$	16.28
Vested	(495,372)	$	26.39
Canceled	(10,391)	$	28.42
Unvested as of January 31, 2018	1,772,577	$	29.51
Granted	529,253	$	32.34
Vested	(451,929)	$	27.49
Canceled	(28,282)	$	29.23
Unvested as of January 31, 2019	1,821,619	$	30.83

Schedule of information regarding stock options

Stock Options

	2019			2018			2017
		Weighted			Weighted			Weighted
		Average			Average			Average
	Shares	Exercise		Shares	Exercise		Shares	Exercise
Stock options outstanding at beginning of year	62,666	$	11.50	251,131	$	9.16	331,651	$	10.59
Exercised	(15,600)	$	6.55	(188,465)	$	8.38	(20,520)	$	12.65
Granted	8,245	$	30.32	—	$	—	—	$	—
Cancelled or forfeited	—	$	—	—	$	—	(60,000)	$	15.87
Stock options outstanding at end of year	55,311	$	15.70	62,666	$	11.50	251,131	$	9.16
Exercisable	47,066	$	13.14	62,666	$	11.50	251,131	$	9.16

Schedule of information about stock options outstanding

	Number	Weighted	Weighted		Number	Weighted
	Outstanding as of	Average	Average		Exercisable as of	Average
	January 31,	Remaining	Exercise		January 31,	Exercise
Range of Exercise Prices	2019	Contractual Life	Price		2019	Price
$5.55 - $9.20	10,000	0.26	$	6.57	10,000	$	6.57
$12.51 - $17.45	27,066	1.52	$	13.73	27,066	$	13.73
$18.11 - $30.32	18,245	3.51	$	23.63	10,000	$	18.11
	55,311				47,066

Summary of Assumptions Used in Option-Pricing Model for Grants

The following table summarizes the assumptions used in the Black-Scholes option-pricing model for grants in fiscal 2019:

	2019
Weighted-average risk free rate of interest		2.5	%
Expected volatility		51.2	%
Weighted-average expected award life (in years)		2.25
Dividend yield		0	%
Weighted-average fair value	$	9.68