CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023
OPERATING ACTIVITIES FROM CONTINUING OPERATIONS:
Net loss	$ (8,171)	$ (429)
Income from discontinued operations, net of tax	671	1,318
Net loss from continuing operations	(8,842)	(1,747)
Adjustments to reconcile net loss from continuing operations to net cash flow from operating activities:
Depreciation	3,820	3,653
Accrued interest added to principal	911	0
Deferred income taxes	0	(1,788)
Amortization of debt issuance costs	649	424
Gain on sale of assets	(1,744)	0
Stock-based compensation expense	481	362
Changes in operating assets and liabilities:
Accounts receivable	2,654	(110)
Emissions and carbon offset credits	300	1,337
Digital assets	329	0
Prepaids and other assets	1,420	(1,593)
Income tax receivable	798	0
Accounts payable	1,252	1,416
Accrued emissions	(970)	3
Accrued expenses	(5,101)	1,365
Income tax payable	0	1,401
Other	3,436	0
Net cash flow (used for) provided by operating activities from continuing operations	(607)	4,723
INVESTING ACTIVITIES FROM CONTINUING OPERATIONS:
Purchases of and deposits for property and equipment	(6,459)	(71,137)
Proceeds from sale of assets	592	0	$ 11,700
Proceeds from sale of marketable securities	0	496
Net cash flow used for investing activities from continuing operations	(5,867)	(70,641)
FINANCING ACTIVITIES FROM CONTINUING OPERATIONS:
Proceeds from issuance of common stock, net of issuance costs	8,096	3,791
Proceeds from stock options exercised	0	2
Restricted stock unit awards settled in cash for taxes	0	(65)
Proceeds from debt, net of issuance costs	0
Proceeds from debt, net of issuance costs		80,371
Principal payments on debt	(3,283)	(5,702)
Repayments of lease obligations	0	(234)
Net cash flow provided by financing activities from continuing operations	4,813	78,163
Discontinued Operations:
Net cash flow from operating activities of discontinued operations	915	1,607
Net cash flow from investing activities of discontinued operations	2,575	2
Net cash flow from financing activities of discontinued operations	0	0
Increase (decrease) in cash and cash equivalents from discontinued operations	3,490	1,609
CHANGE IN CASH AND CASH EQUIVALENTS	1,829	13,854
CASH AND CASH EQUIVALENTS - beginning of year	15,217	82,599	96,453
CASH AND CASH EQUIVALENTS - end of period	$ 17,046	$ 96,453	$ 17,046