Note 6 - Commitments and Contingencies (Details Textual) $ in Millions	Mar. 28, 2022 USD ($)
Pala Interactive LLC [Member]
Business Combination, Price of Acquisition, Expected	$ 170

Purchase price of expected business acquisition prior to consideration being transferred. Excludes asset acquisition.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 15
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=116873391&loc=d3e405-128459

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration