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Note 16 - Concentration	12 Months Ended
	Apr. 30, 2021
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 16 - Concentration: During the twelve months ended April 30, 2021, 31.6% of total publishing revenues of $40,392,000 were derived from a single customer.  During the twelve months ended April 30, 2020, 31.4% of total publishing revenues of $40,299,000 were derived from a single customer.

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- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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- References

No definition available.

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