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Note 16 - Subsequent Events	9 Months Ended
	Sep. 30, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	16. Subsequent Events On October 3, 2022, the Company acquired Blue Pillar, an industrial internet of things (IoT) platform developer that designs, deploys, and manages industrial IoT network software solutions to enable distributed energy generation monitoring and control.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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