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Note K - Stock-based Compensation Plans | 12 Months Ended
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Apr. 30, 2018
Notes to Financial Statements |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | K – Stock-Based Compensation Plans The Company has stock-based compensation plans available to grant non-qualified stock options, incentive stock options and restricted stock to employees, directors and certain advisors of the Company. The current stock-based compensation plans are the Amended and Restated Stock Option Plan and the Amended and Restated Stock Incentive Plan. The Company recorded total stock-based compensation expense for all plans of $1.6 million ( $1.1 million after tax effects), $1.3 million ( $811,000 after tax effects) and $1.5 million ( $952,000 after tax effects) for the years ended April 30, 2018, 2017 and 2016, respectively. Tax benefits were recognized for these costs at the Company’s overall effective tax rate . Stock Options The Company has options outstanding under the Amended and Restated Stock Option Plan. The shareholders of the Company approved the Amended and Restated Stock Option Plan (the “Restated Option Plan”) on August 5, 2015, which extended the term of the Restated Option Plan to June 10, 2025 and increased the number of shares of common stock reserved for issuance under the plan by an additional 300,000 shares to 1,800,000 shares. The Restated Option Plan provides for the grant of options to purchase shares of the Company’s common stock to employees, directors and certain advisors of the Company at a price not less than the fair market value of the stock on the date of grant and for periods not to exceed ten years. Options granted under the Company’s stock option plans expire in the calendar years 2018 through 2027.
|  | Restated Option Plan
Minimum exercise price as a percentage of fair market value at date of grant |  | 100%
Last expiration date for outstanding options |  | May 1, 2027
Shares available for grant at April 30, 2018 |  | 297,500
The fair value of options granted is estimated on the date of grant using the Black-Scholes option pricing model based on the assumptions in the table below.
|  | April 30, 2018 |  | April 30, 2017 |  | April 30, 2016
Expected terms (years) |  | 5.5 |  | 5.5 |  | 5.5
Risk-free interest rate |  | 1.81% |  | 1.47% |  | 1.55%
Volatility |  | 36% |  | 36% |  | 34%
Dividend yield |  | - |  | - |  | -
The expected term of the options is based on evaluations of historical and expected future employee exercise behavior. The risk-free interest rate is based on the U.S. Treasury rates at the date of grant with maturity dates approximately equal to the expected life at the grant date. Volatility is based on historical volatility of the Company’s common stock. The Company has not historically issued dividends and does not expect to do so in the foreseeable future. The following is an aggregate summary of the activity in the Company’s stock option plans from April 30, 2015 to April 30, 2018:
|  | Number of Options |  | Exercise Price per Share |  | Proceeds on Exercise |  | Weighted Average Exercise Price per Share
|  |  |  |  |  | (in thousands) |  |
Outstanding at April 30, 2015 |  |  | 981,750 |  |  | $11.90 | to | $53.02 |  | $ | 23,608 |  |  | $ | 24.05 |
Granted |  |  | 338,750 |  |  | $26.37 | to | $53.02 |  |  | 16,471 |  |  |  | 48.62 |
Exercised |  |  | (30,750 | ) |  | $11.90 | to | $23.34 |  |  | (400 | ) |  |  | 13.00 |
Cancelled |  |  | (11,500 | ) |  | $41.86 | to | $53.02 |  |  | (598 | ) |  |  | 52.05 |
Outstanding at April 30, 2016 |  |  | 1,278,250 |  |  |  |  | $ | 39,081 |  |  | $ | 30.57 |
Granted |  |  | 45,000 |  |  | $26.42 | to | $34.09 |  |  | 1,301 |  |  |  | 28.90 |
Exercised |  |  | (264,500 | ) |  | $11.90 | to | $28.13 |  |  | (4,739 | ) |  |  | 17.92 |
Cancelled |  |  | (30,250 | ) |  | $41.86 | to | $53.02 |  |  | (1,559 | ) |  |  | 51.55 |
Outstanding at April 30, 2017 |  |  | 1,028,500 |  |  |  |  | $ | 34,084 |  |  | $ | 33.51 |
Granted |  |  | 25,000 |  |  |  | $37.30 |  |  |  | 933 |  |  |  | 37.30 |
Exercised |  |  | (323,000 | ) |  | $11.90 | to | $37.94 |  |  | (6,692 | ) |  |  | 20.72 |
Expired |  |  | (15,000 | ) |  | $44.52 | - | $51.81 |  |  | (710 | ) |  |  | 47.26 |
Cancelled |  |  | (20,000 | ) |  | $41.86 | to | $53.02 |  |  | (932 | ) |  |  | 46.61 |
Outstanding at April 30, 2018 |  |  | 695,500 |  |  |  |  | $ | 26,683 |  |  | $ | 30.50 |
Stock option compensation expense on a pre-tax basis was $1.2 million ( $773,000 after tax effects), $1.2 million ( $728,000 after tax effects) and $1.4 million ( $870,000 after tax effects) for the years ended April 30, 2018, 2017 and 2016, respectively. As of April 30, 2018, the Company had approximately $1.7 million of total unrecognized compensation cost related to unvested options that are expected to vest. These options have a weighted-average remaining vesting period of 1.9 years. There were 25,000 options granted during fiscal 2018. The grant-date fair value of all options granted during fiscal 2018, 2017 and 2016 was $336,000, $461,000 and $5.6 million, respectively. The options were granted at fair market value on date of grant. Generally, options vest after three to five years, except for options issued to directors which are immediately vested at date of grant. As of April 30, 2018, there were 126,500 performance based stock options outstanding that were granted in fiscal year 2016 with a five -year performance period ending April 30, 2020. Tiered vesting of these options is based solely on comparing the Company’s net income over the specified performance period to net income at April 30, 2015. As of April 30, 2018, the Company had $1 million in unrecognized compensation expense related to 61,000 of these options that are not currently expected to vest. The aggregate intrinsic value of outstanding options at April 30, 2018 and 2017 was $10.4 million and $8.7 million, respectively. The Company had the following options exercised for the periods indicated. The impact of these cash receipts is included in financing activities in the accompanying Consolidated Statements of Cash Flows .
|  | Years Ended April 30,
(Dollars in thousands) |  | 2018 |  | 2017 |  | 2016
Options Exercised |  |  | 323,000 |  |  |  | 264,500 |  |  |  | 30,750 |
Cash Received from Options Exercised |  | $ | 2,832 |  |  | $ | 2,609 |  |  | $ | 400 |
Intrinsic Value of Options Exercised |  | $ | 8,381 |  |  | $ | 6,439 |  |  | $ | 943 |
During the year ended April 30, 2018, there were 187,000 options exercised through net settlements in accordance with plan provisions, wherein the shares issued were reduced by 106,366 shares to satisfy the exercise price and applicable withholding taxes to acquire 80,634 shares. As of April 30, 2018, there were 367,500 vested and exercisable stock options outstanding with an aggregate intrinsic value of $8.4 million and a weighted average remaining contractual life of 2.66 years and a weighted average exercise price of $30.50. Stock Incentive Plan On October 14, 2009, the shareholders of the Company approved an amendment to the Company’s Stock Incentive Plan that increased the number of shares of common stock that may be issued under the Stock Incentive Plan from 150,000 to 300,000. On August 5, 2015, the shareholders of the Company approved the Amended and Restated Stock Incentive Plan, which extended the term of the Stock Incentive Plan to June 10, 2025. For shares issued under the Stock Incentive Plan, the associated compensation expense is generally recognized equally over the vesting periods established at the award date and is subject to the employee’s continued employment by the Company. The following is a summary of the activity in the Company’s Stock Incentive Plan:
|  | Number of Shares |  | Weighted Average Grant Date Fair Value
Unvested shares at April 30, 2015 |  |  | 9,500 |  |  | $ | 52.10 |
Shares granted |  |  | - |  |  |  | - |
Shares vested |  |  | - |  |  |  | - |
Shares cancelled |  |  | - |  |  |  | - |
Unvested shares at April 30, 2016 |  |  | 9,500 |  |  | $ | 52.10 |
Shares granted |  |  | 10,000 |  |  |  | 39.14 |
Shares vested |  |  | - |  |  |  | - |
Shares cancelled |  |  | (2,500 | ) |  |  | 49.51 |
Unvested shares at April 30, 2017 |  |  | 17,000 |  |  | $ | 44.86 |
Shares granted |  |  | 166,500 |  |  |  | 45.86 |
Shares vested |  |  | - |  |  |  | - |
Shares cancelled |  |  | (4,500 | ) |  |  | 38.28 |
Unvested shares at April 30, 2018 |  |  | 179,000 |  |  | $ | 45.96 |
The fair value at vesting for awards under the stock incentive plan was $8.2 million, $763,000 and $495,000 in fiscal 2018, 2017 and 2016, respectively. During the fiscal year 2018, 132,000 restricted shares were granted with a fair value of $48.70 per share and 34,500 shares were granted with a fair value of $35.00 per share. During the fiscal year 2017, 10,000 restricted shares were granted with a fair value of $39.14 per share. There were no restricted shares granted during fiscal year 2016. A total of 8,027 shares remain available for award at April 30, 2018. The Company recorded compensation cost of $430,000 ( $288,000 after tax effects), $107,000 ( $67,000 after tax effects) and $99,000 ( $62,000 after tax effects) related to the Stock Incentive Plan during the years ended April 30, 2018, 2017 and 2016, respectively. As of April 30, 2018, the Company had $7.6 million of total unrecognized compensation cost related to unvested awards granted under the Stock Incentive Plan, which the Company expects to recognize over a weighted-average remaining period of 8.2 years.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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