Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Revenue	$ 261	$ 1,115	$ 295	$ 1,540
Cost of revenue	106	583	131	825
Gross profit	155	532	164	715
Operating expenses:
Selling, general and administrative	2,039	2,022	3,727	3,668
Research and development	2,437	1,578	4,386	3,450
Total operating expenses	4,476	3,600	8,113	7,118
Loss from operations	(4,321)	(3,068)	(7,949)	(6,403)
Other income and expense, net	312	427	662	850
Net loss	$ (4,009)	$ (2,641)	$ (7,287)	$ (5,553)
Weighted average common shares outstanding:
Basic and diluted (in shares)	1,638	1,631	1,634	1,631
Basic and diluted net loss per common share:
Net loss per common share (in dollars per share)	$ (2.45)	$ (1.62)	$ (4.46)	$ (3.4)
Other comprehensive loss, net of tax:
Net loss	$ (4,009)	$ (2,641)	$ (7,287)	$ (5,553)
Available-for-sale securities:
Net unrealized gain (loss)	(219)	325	97	270
Total comprehensive loss	$ (4,228)	$ (2,316)	$ (7,190)	$ (5,283)