Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cash Flows From Operating Activities
Net loss	$ (3,798)	$ (1,518)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	56	48
Gain on exchange of property and equipment	(70)
Change in fair value of liability	1,347	407
Loss on settlement of derivative	169	417
Change in fair value of warrant derivative liability	1,696
Accretion of debt discount	123
Change in operating assets and liabilities
Accounts receivable		(126)
Prepaid expenses and other current assets		112
Intangible digital assets	6	(2)
Other assets	3	(1)
Operating lease liability		1
Accounts payable	313	104
Accrued expenses	(105)	(95)
Contract liability	(30)	54
Security deposits	269	70
Net cash used in operating activities	(21)	(529)
Cash Flows From Investing Activities
Purchase of property and equipment		(68)
Net cash provided by (used in) investing activities		(68)
Cash Flows From Financing Activities
Repayment of notes payable	(200)
Net cash provided by financing activities	(200)
Net change in cash and cash equivalents	(221)	(597)
Cash and cash equivalents, beginning of period	538	1,230	$ 1,230
Cash and cash equivalents, end of period	317	633	$ 538
Supplemental disclosure of cash flow information
Cash paid for interest	23
Cash paid for income tax
Non-cash investing and financing activities
Cashless exercise of warrants and extinguishment of related warrant derivative liability	200	588
Exchange of property and equipment	$ 70