Note 17 - Extension of the Shareholder Rights Plan	9 Months Ended
Jan. 31, 2023
Notes to Financial Statements
Shareholder Rights Plan [Text Block]	17. Extension of the Shareholder Rights Plan: On July 22, 2021, the Company extended the shareholder rights plan between the Company and UMB Bank, N.A. as rights agent dated as of August 2, 2011 (the “Rights Plan”). The Rights Plan is intended to protect the interests of the Company’s stockholders and enable them to realize the full potential value of their investment by reducing the likelihood that any person or group gains control of the Company, through open market accumulation or other tactics, without appropriately compensating all stockholders. Pursuant to the Rights Plan, the Company issued, by means of a dividend, one preferred share purchase right (a "Right") for each outstanding share of our Common Stock to shareholders of record on the close of business on August 2, 2011. Shares issued after August 2, 2011 also include one Right. Until a triggering event, these Rights will trade with, and be represented by, the shares of our Common Stock. The Rights will generally become exercisable only if any person (or any persons acting as a group) acquires 15% or more of our outstanding Common Stock (the “Acquiring Person”) in a transaction not approved by the Board, subject to certain exceptions. If the Rights become exercisable, all holders of Rights, other than the Acquiring Person, will be entitled to acquire shares of the Company’s common stock at a 50% discount. In such situation, Rights held by the Acquiring Person would become void and will not be exercisable. Each Right entitles the registered holder to purchase from the Company one two-hundredth of a share of Series C Participating Preferred Stock, par value $5.00 per share (the “Preferred Shares”), of the Company at a price of $10 per one two-hundredth of a Participating Preferred Share represented by a Right (the “Purchase Price”), subject to adjustment. Unless a triggering event occurs, the value of the Right is considered de minimis. Unless earlier redeemed, terminated or exchanged pursuant to the terms of the Rights Plan, or the Rights Plan is extended, the Rights will expire at the close of business on August 2, 2031. The Board may terminate the Rights Plan before that date if the Board determines that there is no longer a threat to shareholder value.

Note 17 - Extension of the Shareholder Rights Plan

9 Months Ended

Jan. 31, 2023

17. Extension of the Shareholder Rights Plan:

On July 22, 2021, the Company extended the shareholder rights plan between the Company and UMB Bank, N.A. as rights agent dated as of August 2, 2011 (the “Rights Plan”). The Rights Plan is intended to protect the interests of the Company’s stockholders and enable them to realize the full potential value of their investment by reducing the likelihood that any person or group gains control of the Company, through open market accumulation or other tactics, without appropriately compensating all stockholders. Pursuant to the Rights Plan, the Company issued, by means of a dividend, one preferred share purchase right (a "Right") for each outstanding share of our Common Stock to shareholders of record on the close of business on August 2, 2011. Shares issued after August 2, 2011 also include one Right. Until a triggering event, these Rights will trade with, and be represented by, the shares of our Common Stock. The Rights will generally become exercisable only if any person (or any persons acting as a group) acquires 15% or more of our outstanding Common Stock (the “Acquiring Person”) in a transaction not approved by the Board, subject to certain exceptions.

If the Rights become exercisable, all holders of Rights, other than the Acquiring Person, will be entitled to acquire shares of the Company’s common stock at a 50% discount. In such situation, Rights held by the Acquiring Person would become void and will not be exercisable.

Each Right entitles the registered holder to purchase from the Company one two-hundredth of a share of Series C Participating Preferred Stock, par value $5.00 per share (the “Preferred Shares”), of the Company at a price of $10 per one two-hundredth of a Participating Preferred Share represented by a Right (the “Purchase Price”), subject to adjustment. Unless a triggering event occurs, the value of the Right is considered de minimis.

Unless earlier redeemed, terminated or exchanged pursuant to the terms of the Rights Plan, or the Rights Plan is extended, the Rights will expire at the close of business on August 2, 2031. The Board may terminate the Rights Plan before that date if the Board determines that there is no longer a threat to shareholder value.