Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Revenue	$ 34	$ 425
Cost of revenue	25	242
Gross profit	9	183
Operating expenses:
Selling, general and administrative	1,688	1,646
Research and development	1,949	1,872
Total operating expenses	3,637	3,518
Loss from operations	(3,628)	(3,335)
Other income and expense, net	350	423
Loss from operations before income taxes	(3,278)	(2,912)
Income tax expense	0	0
Net loss	$ (3,278)	$ (2,912)
Weighted average common shares outstanding:
Basic and diluted (in shares)	1,631	1,631
Basic and diluted net loss per common share:
Net loss per common share (in dollars per share)	$ (2.01)	$ (1.79)
Other comprehensive loss, net of tax:
Net loss	$ (3,278)	$ (2,912)
Available-for-sale securities:
Net unrealized gain (loss)	316	(54)
Total comprehensive loss	$ (2,962)	$ (2,966)