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Note 22 - Leases

12 Months Ended

Dec. 31, 2021

Leases of Lessee and Lessor Disclosure [Text Block]

NOTE 22 — LEASES

The Company is a lessee in operating lease transactions primarily consisting of land leases for its exploration and development activities. The Company is a lessee in finance lease transactions primarily consisting of fleet vehicles and office rentals. The Company is a lessor in PPAs that are accounted under lease accounting, as further described under Note 1 to the consolidated financial statements under "Revenues and cost of revenues" and "Leases".

A.	Leases in which the Company is a lessee

The table below presents the effects on the amounts relating to total lease cost:

	Year Ended December 31,
	2021		2020		2019
	(Dollars in thousands)
Lease cost
Finance lease cost:
Amortization of right-of-use assets	$	3,265	$	3,422	$	3,273
Interest on lease liabilities		770		1,226		1,330
Operating lease cost		3,707		3,303		8,057
Variable lease cost		2,368		1,891		1,647
Short-term lease cost		—		—		—
Total lease cost	$	10,110	$	9,842	$	14,307

Other information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for finance leases	$	770	$	1,226	$	1,330
Operating cash flows for operating leases		3,589		3,213		9,004
Financing cash flows for finance leases		3,181		2,890		3,164
Right-of-use assets obtained in exchange for new finance lease liabilities		948		1,028		5,262
Right-of-use assets obtained in exchange for new operating lease liabilities		5,227		2,614		6,364

	December 31,			December 31,
Additional information as of the end of the year:	2021			2020
Weighted-average remaining lease term — finance leases (in years)		2.8			5.2
Weighted-average remaining lease term — operating leases (in years)		17.1			10.7
Weighted-average discount rate — finance leases (in percentage)		3	%		5	%
Weighted-average discount rate — operating leases (in percentage)		5	%		5	%

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:

	Operating Leases		Finance Leases		Financing Liability ⁽¹⁾
	(Dollars in thousands)
Year ending December 31,
2022	$	3,079	$	3,326	$	17,238
2023		2,329		1,549		22,368
2024		2,043		854		102,074
2025		1,656		693		13,324
2026		1,519		514		18,118
Thereafter		18,978		3,313		113,462
Total future minimum lease payments		29,604		10,249		286,584
Less imputed interest		10,578		3,106		33,720
Total	$	19,026	$	7,143	$	252,864

⁽¹⁾ Financing liability was assumed as part of the Terra-Gen business combination transaction as further described under Note 2 to the consolidated financial statements and is related to the sale and lease-back transaction of the Dixie Valley geothermal assets.

B.	Leases in which the Company is a lessor

The table below presents the lease income recognized for lessors:

	Year Ended December 31,
	2021		2020		2019
	(Dollars in thousands)
Lease income relating to lease payments of operating leases	$	502,355	$	473,260	$	479,059