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Note 16 - Concentration | 12 Months Ended
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Apr. 30, 2020
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | Note 16 - Concentration: During the twelve months ended April 30, 2020, 31.4% of total publishing revenues of $40,299,000 were derived from a single customer. During the twelve months ended April 30, 2019, 20.5% of total publishing revenues of $36,257,000 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 + Details
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