Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Cash Flows [Abstract]
Net Cash Used in Operating Activities	$ (1,530)	$ (724)
Cash Flows Provided by (Used in) Investing Activities:
Expenditures for property, plant and equipment - continuing operations	(824)	(833)
Expenditures for property, plant and equipment - discontinued operations	(74)	(318)
Proceeds from sale of property, plant and equipment - continuing operations	5	213
Net Cash Used in Investing Activities	(893)	(938)
Cash Flows Provided by (Used in) Financing Activities:
Proceeds from share options exercises	6	48
Payments on long-term debt - discontinued operations	(14)	(24)
Net Cash Provided by (Used in) Financing Activities	(8)	24
Net Decrease in Cash and Cash Equivalents	(2,431)	(1,638)
Cash and Cash Equivalents Beginning of Period	4,486	6,794
Cash and Cash Equivalents End of Period	2,055	5,156
Cash Paid (Received) for:
Interest	(51)	(6)
Income taxes	105	(32)
Non-cash investing and financing activities:
Right-of-use assets obtained in exchange for operating lease liabilities	$ 18	$ 24