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STOCKHOLDERS' EQUITY | 12 Months Ended
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Jan. 31, 2020
Stockholders' Equity [Abstract] |
STOCKHOLDERS' EQUITY | ​ ​ NOTE J — STOCKHOLDERS’ EQUITY ​ Share Repurchase Program ​ The Company’s Board of Directors has authorized a share repurchase program of 5,000,000 shares. The timing and actual number of shares repurchased, if any, will depend on a number of factors, including market conditions and prevailing stock prices, and are subject to compliance with certain covenants contained in the loan agreement. Share repurchases may take place on the open market, in privately negotiated transactions or by other means, and would be made in accordance with applicable securities laws. ​ During fiscal 2020, pursuant to this program, the Company acquired 1,327,566 of its shares of common stock for an aggregate purchase price of $35.2 million. During fiscal 2019, the Company acquired 723,072 of its shares of common stock for an aggregate purchase price of $20.3 million. ​ Long-Term Incentive Plan ​ As of January 31, 2020, the Company had 2,756,905 shares available for grant under its long-term incentive plan. The plan provides for the grant of equity and cash awards, including restricted stock awards, stock options and other stock unit awards to directors, officers and employees. RSU’s generally vest over a three year period. PRSU’s granted to executives prior to fiscal 2020 include (i) market price performance conditions that provide for the award to vest only after the average closing price of the Company’s stock trades above a predetermined market level and (ii) another performance condition that requires the achievement of an operating performance target. PSU’s granted to executives in fiscal 2020 vest after a three year performance period during which certain earnings before interest and taxes and return on invested capital performance standards must be satisfied for vesting to occur. PSU’s are also subject to a lock up period that prevents the sale, contract to sell or transfer of shares for two years subsequent to the date of vesting. It is the Company’s policy to grant stock options at prices not less than the fair market value on the date of the grant. Option terms, vesting and exercise periods vary, except that the term of an option may not exceed ten years. ​ Restricted Stock Units and Performance Based Restricted Stock Units ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Restricted Stock Units | ​ | Performance Based Restricted Stock Units
​ | ​ | ​ | Weighted Average | ​ | ​ | ​ | Weighted Average
​ | Awards | ​ | Grant Date | ​ | Awards | ​ | Grant Date
​ | Outstanding |  | Fair Value | ​ | Outstanding |  | Fair Value
Unvested as of January 31, 2017 | 435,102 | ​ | $ | 30.36 | ​ | 1,599,472 | ​ | $ | 30.32
Granted | 52,891 | ​ | $ | 26.83 | ​ | 190,875 | ​ | $ | 13.36
Vested | (150,588) | ​ | $ | 28.75 | ​ | (344,784) | ​ | $ | 25.35
Cancelled | (10,391) | ​ | $ | 28.42 | ​ | — | ​ | $ | —
Unvested as of January 31, 2018 | 327,014 | ​ | $ | 30.59 | ​ | 1,445,563 | ​ | $ | 29.26
Granted | 137,723 | ​ | $ | 38.32 | ​ | 391,530 | ​ | $ | 30.23
Vested | (159,663) | ​ | $ | 30.38 | ​ | (292,266) | ​ | $ | 25.91
Cancelled | (23,249) | ​ | $ | 29.69 | ​ | (5,033) | ​ | $ | 27.10
Unvested as of January 31, 2019 | 281,825 | ​ | $ | 34.56 | ​ | 1,539,794 | ​ | $ | 30.15
Granted | 142,594 | ​ | $ | 37.74 | ​ | 332,651 | ​ | $ | 35.77
Vested | (168,781) | ​ | $ | 32.32 | ​ | (810,655) | ​ | $ | 24.58
Cancelled | (12,695) | ​ | $ | 35.09 | ​ | (3,080) | ​ | $ | 42.41
Unvested as of January 31, 2020 | 242,943 | ​ | $ | 37.95 | ​ | 1,058,710 | ​ | $ | 36.15
​ ​ Restricted Stock Units ​ Restricted stock units (“RSU’s”) are time based awards that do not have market or performance conditions and vest over a three year period. The grant date fair value for RSU’s are based on the quoted market price on the date of grant. Compensation expense for RSU’s is recognized in the consolidated financial statements on a straight-line basis over the service period based on their grant date fair value. ​ Performance Based Restricted Stock Units ​ Performance based restricted stock units consist of both performance based restricted stock units (“PRSU’s”) and performance stock units (“PSU’s”). ​ PRSU’s were granted to executives prior to fiscal 2020 and included (i) market price performance conditions that provide for the award to vest only after the average closing price of the Company’s stock trades above a predetermined market level and (ii) another performance condition that requires the achievement of an operating performance target. PRSU’s generally vest over a two to five year period. For restricted stock units with market conditions, the Company estimates the grant date fair value using a Monte Carlo simulation model. This valuation methodology utilizes the closing price of the Company’s common stock on grant date and several key assumptions, including expected volatility of the Company’s stock price, and risk-free rates of return. This valuation is performed with the assistance of a third party valuation specialist. PRSU’s are expensed over the service period under the requisite acceleration method. ​ PSU’s were granted to executives in fiscal 2020 and vest after a three year performance period during which certain earnings before interest and taxes and return on invested capital performance standards must be satisfied for vesting to occur. PSU’s are also subject to a lock up period that prevents the sale, contract to sell or transfer shares for two years subsequent to the date of vesting. PSU’s are expensed over the service period under the requisite acceleration method and based on an estimated percentage of achievement of certain pre-established goals. ​ The Company accounts for forfeited awards as they occur as permitted by ASU 2016-09. Ultimately, the actual expense recognized over the vesting period will be for those shares that vest. ​ The Company recognized $17.5 million, $19.7 million and $19.7 million in share-based compensation expense for the years ended January 31, 2020, 2019 and 2018, respectively, related to restricted stock unit grants. At January 31, 2020, 2019 and 2018, unrecognized costs related to the restricted stock units totaled $18.7 million, $19.4 million and $23.0 million, respectively. The total fair value of awards for which restrictions lapsed was $31.0 million, $17.5 million and $14.3 million as of January 31, 2020, 2019 and 2018, respectively. ​ Stock Options ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2020 | ​ | 2019 | ​ | 2018
​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average
​ |  | Shares |  | Exercise |  | Shares |  | Exercise |  | Shares |  | Exercise
Stock options outstanding at beginning of year | ​ | 55,311 | ​ | $ | 15.70 | ​ | 62,666 | ​ | $ | 11.50 | ​ | 251,131 | ​ | $ | 9.16
Exercised | ​ | (13,200) | ​ | $ | 8.71 | ​ | (15,600) | ​ | $ | 6.55 | ​ | (188,465) | ​ | $ | 8.38
Granted | ​ | — | ​ | $ | — | ​ | 8,245 | ​ | $ | 30.32 | ​ | — | ​ | $ | —
Cancelled or forfeited | ​ | (2,800) | ​ | $ | 9.20 | ​ | — | ​ | $ | — | ​ | — | ​ | $ | —
Stock options outstanding at end of year | ​ | 39,311 | ​ | $ | 18.51 | ​ | 55,311 | ​ | $ | 15.70 | ​ | 62,666 | ​ | $ | 11.50
Exercisable | ​ | 35,188 | ​ | $ | 17.12 | ​ | 47,066 | ​ | $ | 13.14 | ​ | 62,666 | ​ | $ | 11.50
​ The following table summarizes 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 |  | 2020 |  | Contractual Life |  | Price |  | 2020 |  | Price
$12.51 - $17.45 | ​ | 21,066 | ​ | 0.56 | ​ | $ | 14.07 | ​ | 21,066 | ​ | $ | 14.07
$18.11 - $30.32 | ​ | 18,245 | ​ | 2.51 | ​ | $ | 23.63 | ​ | 14,122 | ​ | $ | 21.67
​ | ​ | 39,311 | ​ | ​ | ​ | ​ | ​ | ​ | 35,188 | ​ | ​ | ​
​ Stock Options ​ Compensation expense for employee stock options is recognized in the consolidated financial statements over the service period (generally the vesting period) based on their fair value. Stock options are valued using the Black-Scholes option pricing model. The Black-Scholes model requires subjective assumptions regarding dividend yields, expected volatility, expected life of options and risk-free interest rates. These assumptions reflect management’s best estimates. Changes in these inputs and assumptions can materially affect the estimate of fair value and the amount of our compensation expenses for stock options. No stock options were granted during the years ended January 31, 2020 and January 31, 2018. The Company granted 8,245 stock options during the year ended January 31, 2019. ​ The Company accounts for forfeited awards as they occur as permitted by ASU 2016-09. Ultimately, the actual expense recognized over the vesting period will be for those shares that vest. ​ The weighted average remaining term for stock options outstanding was 1.5 years at January 31, 2020. The aggregate intrinsic value at January 31, 2020 was $0.4 million for stock options outstanding and $0.4 million for stock options exercisable. The intrinsic value for stock options is calculated based on the exercise price of the underlying awards and the market price of the Company’s common stock as of January 31, 2020, the reporting date. ​ Proceeds received from the exercise of stock options were $0.1 million during the years ended January 31, 2020 and 2019. The intrinsic value of stock options exercised was $0.3 million and $0.4 million for the years ended January 31, 2020 and 2019, respectively. A portion of this amount is currently deductible for tax purposes. ​ The Company recognized $0.1 million in compensation expense for the year ended January 31, 2020 related to stock options. The Company recognized a nominal amount in compensation expense for the year ended January 31, 2019. No compensation expense related to stock options was recognized for the year ended January 31, 2018.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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