Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CONTINUING OPERATIONS:
REVENUES	$ 2,313	$ 35
COST OF REVENUES	1,093	45
GROSS PROFIT (LOSS)	1,220	(10)
OPERATING EXPENSES:
Selling, general and administrative	2,884	1,550
Depreciation, amortization, depletion and accretion	301	77
Research and development	230	897
Total operating expenses	3,415	2,524
Loss from continuing operations before other income (expense)	(2,195)	(2,534)
OTHER INCOME (EXPENSE):
Change in fair value of derivative liability	(17,393)	945
Gain on exchange of warrants for common stock	1,630
Loss on conversion of long-term debt and accrued expenses	(2,194)
Loss on disposal of fixed assets	(105)
Loss on abandonment of oil and gas property	(83)
Interest expense, net of interest income	(841)	(59)
Total other income (expenses)	(18,986)	886
LOSS FROM CONTINUING OPERATIONS BEFORE PROVISION FOR INCOME TAXES	(21,181)	(1,648)
DISCONTINUED OPERATIONS:
Gain on disposal of discontinued operations		2
Total discontinued operations		2
PROVISION FOR INCOME TAXES
NET LOSS	$ (21,181)	$ (1,646)
NET LOSS PER SHARE
Basic and diluted: Continuing operations	$ (0.23)	$ (0.03)
Discontinued operations	0
Total	$ (0.23)	$ (0.03)
SHARES USED IN CALCULATION OF NET LOSS PER SHARE
Basic and diluted	91,784	53,819