MINERAL PROPERTIES (Narrative) (Details) $ in Thousands, $ in Thousands			1 Months Ended						12 Months Ended				27 Months Ended
	Apr. 05, 2022 USD ($) shares	Mar. 05, 2021 USD ($)	Oct. 28, 2022 USD ($) shares	May 17, 2022 USD ($)	Mar. 18, 2022 USD ($)	Mar. 17, 2022 shares	Feb. 14, 2022 shares	Feb. 24, 2021 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CAD ($) shares	Dec. 31, 2021 USD ($) shares	May 31, 2015 USD ($)	May 26, 2022 USD ($)	Apr. 13, 2022 USD ($)	Jan. 26, 2022 CAD ($)	Jan. 26, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 17, 2021 CAD ($)	Sep. 17, 2021 USD ($)	Aug. 25, 2021	Apr. 20, 2017
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Payments to acquire mineral rights										$ 1,413		$ 543
Singatse Peak Services [Member] | Macarthur and Yerington properties [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest										100.00%
Sales price of certain water rights								$ 2,910
Proceeds from sale of certain water rights		$ 1,000
Deposit returned														$ 1,000
Singatse Peak Services [Member] | Bear and Wassuk properties [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership option										100.00%
Singatse Peak Services [Member] | Bear [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership option													100.00%
Option agreement, obligated cash payments													$ 5,673
Payments to acquire mineral rights										$ 193		193	$ 5,222
Option agreement, obligated cash payments next year										201
Option agreement, obligated cash payments next five years										50
Net smelter return royalty													2.00%
Potential net smelter return royalty in exchange for consideration													1.00%
Consideration required for decreased net smelter return royalty													$ 1,250
Singatse Peak Services [Member] | Bear [Member] | Taylor [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		$ 1,250
Singatse Peak Services [Member] | Bear [Member] | Chisum [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		250
Per year payment required										$ 50
Singatse Peak Services [Member] | Bear [Member] | Yerington Mining [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		5,000
Singatse Peak Services [Member] | Bear [Member] | Circle Bar N [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		8,975
Singatse Peak Services [Member] | Bear [Member] | Desert Pearl Farms [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		22,770
Singatse Peak Services [Member] | Wassuk [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest										100.00%
Option agreement, obligated cash payments																		$ 1,405
Payments to acquire mineral rights										$ 0		250
Option agreement, obligated work commitment										$ 50
Net smelter return royalty										3.00%
Potential net smelter return royalty in exchange for consideration										2.00%
Consideration required for decreased net smelter return royalty										$ 1,500
Quaterra Alaska [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Percentage of ownership																100.00%	100.00%
Quaterra Alaska [Member] | Groundhog [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest											90.00%							90.00%				90.00%
Option agreement, obligated cash payments																		$ 5,000
Payments to acquire mineral rights										$ 2,839
Net smelter return royalty										1.75%
Potential net smelter return royalty in exchange for consideration										0.875%
Consideration required for decreased net smelter return royalty										$ 25,000
Quaterra Alaska [Member] | Groundhog [Member] | Chuchuna [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated cash payments																		$ 3,000
Quaterra Alaska [Member] | Butte Valley [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Payments to acquire mineral rights										0		100
Net smelter return royalty																1.50%	1.50%
Potential net smelter return royalty in exchange for consideration															0.50%	1.00%	1.00%
Consideration required for decreased net smelter return royalty															$ 500		$ 7,500
Number of shares received | shares	16,049,444
Fair value of shares received	$ 1,906
Cash for mineral property	500
Gain on sale of mineral properties	$ 2,207
Quaterra Alaska [Member] | Blue Copper [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Payments to acquire mineral rights										$ 118		0
Lion CG [Member] | Chaco Bear & Ashton [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest																					100.00%
Ownership option										100.00%						100.00%	100.00%
Payments to acquire mineral rights										$ 602	$ 200	0
Shares issued for mineral properties (Shares) | shares						8,000,000
Net smelter return royalty											2.50%					2.50%	2.50%	2.50%	2.50%	2.50%
Consideration required for decreased net smelter return royalty											$ 200
Lion CG [Member] | Chaco Bear Property [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated exploration expenditures											150
Option agreement, obligated cash payments											1,500
Potential net smelter return royalty in exchange for consideration																			1.00%	1.00%
Consideration required for decreased net smelter return royalty																			$ 6,000
Annual advance royalty payments in the fourth and fifth year											250					$ 250
Amount of remaining NSR Purchase																				$ 12,000
Maintenance fees									$ 60
Lion CG [Member] | Ashton Property [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Option agreement, obligated exploration expenditures											50
Option agreement, obligated cash payments											1,000
Potential net smelter return royalty in exchange for consideration																			1.00%	1.00%
Consideration required for decreased net smelter return royalty																			$ 3,000
Annual advance royalty payments in the fourth and fifth year											$ 150					$ 150
Amount of remaining NSR Purchase																				$ 6,000
Maintenance fees									$ 40
Blue Copper Resources Corp [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Percentage of ownership										79.00%
Blue Copper Resources Corp [Member] | Groundhog [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest transferred										90.00%
Payments to acquire mineral rights										$ 0		0
Blue Copper Resources Corp [Member] | Blue Copper [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Ownership interest transferred										100.00%
Payments to acquire mineral rights										$ 500		$ 0
Shares issued for mineral properties (Shares) | shares							1,500,000				1,500,000	1,500,000
Net smelter return royalty											2.00%							2.00%
Potential net smelter return royalty in exchange for consideration											1.00%							1.00%
Consideration required for decreased net smelter return royalty																		$ 1,500
Number of shares received | shares			15,000,000
Fair value of shares received			$ 500
Blue Copper Resources Corp [Member] | Blue Copper - additional 131 claims [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Net smelter return royalty											2.00%							2.00%
Potential net smelter return royalty in exchange for consideration											1.00%							1.00%
Consideration required for decreased net smelter return royalty																		$ 600
Rio Tinto [Member] | Option to Earn-in Agreement
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Net smelter return royalty					1.50%
Option to earn interest in assets					65.00%
Minimum percentage of holding in investment vehicle					65.00%
Maximum amount funded in project financing costs					$ 60,000
Ownership percentage received in exchange for project financing costs					10.00%
Addition amount funded in project financing costs					$ 40,000
Ownership percentage received in exchange for Addition project financing costs					5.00%
Description of uncapped NSR					If Lion CG's ownership percentage in the investment vehicle is diluted to 10% or less, then Lion CG's ownership interest will be converted into a 1% uncapped NSR.
Advance payment										7,500
Rio Tinto [Member] | Option to Earn-in Agreement | Work program stage one [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Exclusive earn-in option										4,000
Development costs				$ 4,000
Rio Tinto [Member] | Option to Earn-in Agreement | Work program stage two [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Study and evaluation works										5,000
Development costs				$ 4,000
Advance payment										5,000
Rio Tinto [Member] | Option to Earn-in Agreement | Work program stage three [Member]
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]
Feasibility study										50,000
Advance payment										$ 2,500