Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Shares [Member]	Common Shares [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings (Loss) [Member]	Retained Earnings (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Other Comprehensive Loss [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning Balance at Jun. 30, 2018	$ 17,186	$ 0	$ 3,673	$ 0	$ 10,947	$ 0	$ 2,743	$ 69	$ (177)	$ (69)
Beginning Balance,Shares at Jun. 30, 2018			7,347
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member
Net loss	$ (1,754)		$ 0		0		(1,754)		0
Minimum pension liability adjustment	(7)		0		0		0		(7)
Share-based compensation	1		$ 0		1		0		0
Share-based compensation, shares			0
Shares repurchased	$ (383)		$ (180)		(203)		0		0
Shares repurchased, shares	(359,959)		(360)
Ending Balance at Jun. 30, 2019	$ 15,043		$ 3,493		10,745		1,058		(253)
Ending Balance, Shares at Jun. 30, 2019	6,987,000		6,987
Net loss	$ (1,140)		$ 0		0		(1,140)		0
Minimum pension liability adjustment	(86)		0		0		0		(86)
Share-based compensation	28		$ 0		28		0		0
Share-based compensation, shares			0
Shares repurchased	$ (102)		$ (43)		(59)		0		0
Shares repurchased, shares	(87,534)		(88)
Ending Balance at Jun. 30, 2020	$ 13,743		$ 3,450		$ 10,714		$ (82)		$ (339)
Ending Balance, Shares at Jun. 30, 2020	6,899,000		6,899