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OPERATING SEGMENTS - Reconciliation of EBITDA to net cash provided by (used in) operating activities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reconciliation
Net cash used in operating activities	$ 1,870	$ (1,820)
Changes in working capital and other items	5,971	4,253
Non-cash adjustments to net income (loss)	(271)	(254)
EBITDA	7,570	2,179
Operating segment | United States
Reconciliation
Net cash used in operating activities	1,996	2,578
Changes in working capital and other items	1,835	(2,794)
Non-cash adjustments to net income (loss)	(220)	(218)
EBITDA	3,611	(434)
Operating segment | Canada
Reconciliation
Net cash used in operating activities	(126)	(4,398)
Changes in working capital and other items	4,136	7,047
Non-cash adjustments to net income (loss)	(51)	(36)
EBITDA	$ 3,959	$ 2,613

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- Definition

Amount of EBITDA, or earnings before interest, taxes, depreciation, and amortization.

+ References

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- Definition

The non-cash portion of total operating lease costs for the period.

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
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- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
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-Section 45
-Paragraph 28
-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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