Note 2 - Summary of Significant Accounting Policies - Summary of Segment Activity (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Revenues from external customers		$ 322,217	$ 82,948
Depreciation, Depletion and Amortization, Total	[1]	33,839	12,910
Interest expense		37,813	8,337
Loss from operations		(187,577)	(52,791)
Segment assets (2)	[2]	271,571	411,309
Other intangibles assets, net		111,134	142,656
Goodwill		7,006	100,899
Expenditures for segment assets (3)	[3]	4,610	8,484
Electric Power Segment [Member]
Revenues from external customers		152,635	43,599
Depreciation, Depletion and Amortization, Total	[1]	26,911	5,969
Interest expense		18,158	3,129
Loss from operations		(88,045)	(13,215)
Segment assets (2)	[2]	167,245	273,726
Other intangibles assets, net		85,355	106,377
Goodwill		0	70,151
Expenditures for segment assets (3)	[3]	3,167	5,905
Telecommunications Segment [Member]
Revenues from external customers		83,816	27,799
Depreciation, Depletion and Amortization, Total	[1]	4,863	2,326
Interest expense		218	50
Loss from operations		(22,112)	43
Segment assets (2)	[2]	67,920	80,800
Other intangibles assets, net		24,333	28,571
Goodwill		0	23,742
Expenditures for segment assets (3)	[3]	1,326	1,615
Renewables Segment [Member]
Revenues from external customers		85,766	11,550
Depreciation, Depletion and Amortization, Total	[1]	2,001	2,931
Interest expense		10	349
Loss from operations		(68,137)	(19,043)
Segment assets (2)	[2]	18,932	28,324
Other intangibles assets, net		1,446	7,708
Goodwill		7,006	7,006
Expenditures for segment assets (3)	[3]	19	118
Other Segments [Member]
Revenues from external customers		0	0
Depreciation, Depletion and Amortization, Total	[1]	64	1,684
Interest expense		19,427	4,809
Loss from operations		(9,283)	(20,576)
Segment assets (2)	[2]	17,474	28,459
Other intangibles assets, net		0	0
Goodwill		0	0
Expenditures for segment assets (3)	[3]	$ 98	$ 846

[1] For the year ended December 31, 2021, depreciation and amortization totals included $1.6 million that were classified in income from discontinued operations on the Consolidated Statements of Operations in the Other segment, with no such amounts in 2022. For the year ended December 31, 2022 depreciation and amortization totals included $0.6 million that was classified as cost of revenues in the Telecommunications segment, $13.2 million that was classified as cost of revenues in the Electric Power segment and $27 thousand that was classified as cost of revenue in the Renewables segment. For the year ended December 31, 2021 depreciation and amortization totals included $0.4 million that was classified as cost of revenues in the Telecommunications segment, $4.0 million that was classified as a cost of revenues in the Electric Power segment and $54 thousand that was classified as cost of revenue in the Renewables segment.

[2] Other category includes assets held for sale of the discontinued Orbital Gas subsidiaries and Eclipse Foundation Group fixed assets held for sale.

[3] Includes purchases of property and equipment and purchases of other intangible assets.