Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Statement of Cash Flows [Abstract]
Net loss	$ (4,216)	$ (3,410)
Adjustments to reconcile net loss to cash used in operating activities
Depreciation	105	78
Inventory write-down	123	4
Gain on extinguishment of derivative warrant liability, net		(237)
Change in fair value of derivative warrant liability	(9)	(582)
Common stock issued for services	6
Amortization of debt discount	4
Common stock warrants issued for services		50
Inventory	12	(15)
Prepaid and other current assets	(33)	114
Operating lease right-of-use asset	209	184
Accounts payable and accrued expenses	(133)	364
Accrued interest on notes payable	1,150	492
Customer advances	(7)	14
Operating lease liability	(206)	(179)
Cash used in operating activities	(2,995)	(3,123)
Cash used in investing activities:
Purchase of property and equipment	(22)	(54)
Cash flows from financing activities:
Proceeds from issuance of common stock	2,943	3,270
Proceeds from issuance of notes payable	281
Principal payments of notes payable	(98)	(228)
Cash provided by financing activities	3,126	3,042
Net increase (decrease) in cash and cash equivalents	109	(135)
Cash and cash equivalents-beginning of year	15	150
Cash and cash equivalents-end of year	124	15
Cash paid for:
Interest	185	166
Supplemental schedule of non-cash transactions:
Fair value of warrants issued for note payable	5
Fair value of warrants issued for note settlement		$ 1,051