Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Revenue	$ 148	$ 261	$ 445	$ 295
Cost of revenue	140	106	249	131
Gross profit	8	155	196	164
Operating expenses:
Selling, general and administrative	2,077	2,039	3,857	3,727
Research and development	1,832	2,437	3,776	4,386
Total operating expenses	3,909	4,476	7,633	8,113
Loss from operations	(3,901)	(4,321)	(7,437)	(7,949)
Other income and expense, net	(26)	312	45	662
Loss from operations before income taxes	(3,927)	(4,009)	(7,392)	(7,287)
Income tax expense	0	0	0	0
Net loss	$ (3,927)	$ (4,009)	$ (7,392)	$ (7,287)
Weighted average common shares outstanding:
Basic and diluted (in shares)	1,676	1,638	1,675	1,634
Basic and diluted net loss per common share:
Net loss per common share (in dollars per share)	$ (2.34)	$ (2.45)	$ (4.41)	$ (4.46)
Other comprehensive loss, net of tax:
Net loss	$ (3,927)	$ (4,009)	$ (7,392)	$ (7,287)
Available-for-sale securities:
Net unrealized gain (loss)	168	(219)	316	97
Total comprehensive loss	$ (3,759)	$ (4,228)	$ (7,076)	$ (7,190)