Note 12 - Subsequent Events	6 Months Ended
Jun. 30, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 12 — SUBSEQUENT EVENTS Cash Dividend On August 3, 2022, the Board of Directors of the Company declared, approved and authorized payment of a quarterly dividend of $6.7 million ($0.12 per share) to all holders of the Company’s issued and outstanding shares of common stock on August 17, 2022, payable on August 31, 2022. Dixie Meadows On August 1, 2022, the Company entered into a stipulation in the pending litigation to temporarily pause construction of the 12MW Dixie Meadows geothermal power plant in Nevada as it works collaboratively through the ESA consultation process with the relevant regulatory agencies. For more information, see Note 10 - commitments and contingencies, to the condensed consolidated financial statements.

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.

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
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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