Consolidated Statement of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Preferred Stock [Member] Series D Preferred Stock [Member]	Common Stock Outstanding [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jun. 30, 2021	281	1,648
Balance at Jun. 30, 2021	$ 0	$ 190,641	$ 0	$ 77,971	$ (207,382)	$ (23)	$ 61,207
Net unrealized loss	$ 0	$ 0	0	0	0	(1,176)	(1,176)
Stock-based compensation (in shares)	0	46
Stock-based compensation	$ 0	$ 1	0	1,534	0	0	1,535
Cancellation of restricted stock (in shares)	0	(8)
Cancellation of restricted stock	$ 0	$ 0	0	0	0	0	0
Net loss	$ 0	$ 0	0	0	(8,330)	0	(8,330)
Balance (in shares) at Jun. 30, 2022	281	1,686
Balance at Jun. 30, 2022	$ 0	$ 190,642	0	79,505	(215,712)	(1,199)	53,236
Net unrealized loss	$ 0	$ 0	0	0	0	(254)	(254)
Stock-based compensation (in shares)	0	4
Stock-based compensation	$ 0	$ 1	0	1,497	0	0	1,498
Net loss	$ 0	$ 0	0	0	(9,642)	0	(9,642)
Restricted stock issuance (in shares)	0	2
Purchase of treasury stock (in shares)	0	(10)
Purchase of treasury stock	$ 0	$ 0	(119)	0	0	0	(119)
Balance (in shares) at Jun. 30, 2023	281	1,682
Balance at Jun. 30, 2023	$ 0	$ 190,643	$ (119)	$ 81,002	$ (225,354)	$ (1,453)	$ 44,719