XML 47 R16.htm IDEA: XBRL DOCUMENT
v3.22.2

Note 9 - Legal Proceedings | 12 Months Ended
--- | ---
Apr. 30, 2022
Notes to Financial Statements |
Legal Matters and Contingencies [Text Block] |
9. | LEGAL PROCEEDINGS
The Company has been named in certain legal proceedings, including those containing derivative and class action allegations. The Company is vigorously defending all legal proceedings and believes litigation will not have a material adverse effect on the Company’s financial position, cash flows or results of operations.

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for legal proceedings, legal contingencies, litigation, regulatory and environmental matters and other contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI https://asc.fasb.org/topic&trid=2127136 + Details
Name: | us-gaap_LegalMattersAndContingenciesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration