Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 187	$ 140
Cost of revenue	175	113
Gross profit	12	27
Operating expenses:
Selling, general and administrative	1,426	926
Research and development	639	609
Disposal of corporate lease		544
Total operating expenses	2,065	2,079
Loss from operations	(2,053)	(2,052)
Other income and (expense), net	24	(59)
Loss from operations before income taxes	(2,029)	(2,111)
Income tax benefit	0	0
Net loss	$ (2,029)	$ (2,111)
Weighted average common shares outstanding:
Basic and diluted	47,428	7,719
Basic and diluted net loss per common share:
Net loss	$ (0.04)	$ (0.27)
Other comprehensive loss, net of tax:
Net loss	$ (2,029)	$ (2,111)
Available-for-sale securities:
Net unrealized loss	(48)
Total comprehensive loss	$ (2,077)	$ (2,111)