Note 3 - Acquisitions - Purchase Price (Details) (Parentheticals)	May 06, 2021 shares
Neeltran Inc. [Member] \| Neeltran Inc. Sellling Stockholders [Member]
Issuance of common stock, shares (in shares)	301,556

Number of shares of equity interests issued or issuable to acquire entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479581/805-30-50-1

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration