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Note 9 - Preferred Stock | 3 Months Ended
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Jul. 31, 2021
Equity [Abstract] |
Note 9 - Preferred Stock | Note 9 - Preferred Stock Series A Preferred Stock ("Series A Stock") is convertible to common stock at a ratio of 8.33 shares of common stock for each share of Series A Stock, and votes together with the common stock on an as-if-converted basis. The Series A Stock was automatically converted into shares of common stock upon the effectiveness of our reverse stock split in August 2019, except for 208,704 shares which were subject to a limitation on the number of shares of common stock that can be held by the holder of those shares of Series A Stock. Shares outstanding totaled 158,704 at July 31, 2021, and were converted into 1,321,996 shares of common stock on August 10, 2021. Series B Preferred Stock ("Series B Stock") is convertible into common stock at a ratio of 0.8334 shares of common stock for each share of Series B Stock held and votes together with the common stock on an as-if-converted basis. Shares outstanding at July 31, 2021 totaled 986,676 which are convertible into 822,230 shares of common stock.

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- Definition The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock. + 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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