Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - 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, 2023	281	1,682
Balance at Jun. 30, 2023	$ 0	$ 190,643	$ (119)	$ 81,002	$ (225,354)	$ (1,453)	$ 44,719
Net change in available-for-sale marketable securities	$ 0	$ 0	0	0	0	(54)	(54)
Stock-based compensation (in shares)	0	0
Stock-based compensation	$ 0	$ 0	0	364	0	0	364
Net loss	0	0	0	0	(2,912)	0	(2,912)
Net unrealized gain (loss)	$ 0	$ 0	0	0	0	(54)	(54)
Balance (in shares) at Sep. 30, 2023	281	1,702
Balance at Sep. 30, 2023	$ 0	$ 190,643	(119)	81,366	(228,266)	(1,507)	42,117
Issuance of restricted stock (in shares)	0	20
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
Net change in available-for-sale marketable securities							270
Net loss							(5,553)
Net unrealized gain (loss)							270
Balance (in shares) at Dec. 31, 2023	281	1,702
Balance at Dec. 31, 2023	$ 0	$ 190,643	(119)	81,839	(230,907)	(1,182)	40,274
Balance (in shares) at Sep. 30, 2023	281	1,702
Balance at Sep. 30, 2023	$ 0	$ 190,643	(119)	81,366	(228,266)	(1,507)	42,117
Net change in available-for-sale marketable securities	$ 0	$ 0	0	0	0	325	325
Stock-based compensation (in shares)	0	0
Stock-based compensation	$ 0	$ 0	0	473	0	0	473
Net loss	0	0	0	0	(2,641)	0	(2,641)
Net unrealized gain (loss)	$ 0	$ 0	0	0	0	325	325
Balance (in shares) at Dec. 31, 2023	281	1,702
Balance at Dec. 31, 2023	$ 0	$ 190,643	(119)	81,839	(230,907)	(1,182)	40,274
Balance (in shares) at Jun. 30, 2024	281	1,702
Balance at Jun. 30, 2024	$ 0	$ 190,643	(119)	82,480	(237,020)	(1,177)	34,807
Net change in available-for-sale marketable securities	$ 0	$ 0	0	0	0	316	316
Stock-based compensation (in shares)	0	0
Stock-based compensation	$ 0	$ 0	0	216	0	0	216
Net loss	0	0	0	0	(3,278)	0	(3,278)
Net unrealized gain (loss)	$ 0	$ 0	0	0	0	316	316
Balance (in shares) at Sep. 30, 2024	281	1,702
Balance at Sep. 30, 2024	$ 0	$ 190,643	(119)	82,696	(240,298)	(861)	32,061
Balance (in shares) at Jun. 30, 2024	281	1,702
Balance at Jun. 30, 2024	$ 0	$ 190,643	(119)	82,480	(237,020)	(1,177)	34,807
Net change in available-for-sale marketable securities							97
Net loss							(7,287)
Net unrealized gain (loss)							97
Balance (in shares) at Dec. 31, 2024	281	1,702
Balance at Dec. 31, 2024	$ 0	$ 190,643	(119)	82,957	(244,307)	(1,080)	28,094
Balance (in shares) at Sep. 30, 2024	281	1,702
Balance at Sep. 30, 2024	$ 0	$ 190,643	(119)	82,696	(240,298)	(861)	32,061
Net change in available-for-sale marketable securities	$ 0	$ 0	0	0	0	(219)	(219)
Stock-based compensation (in shares)	0	0
Stock-based compensation	$ 0	$ 0	0	261	0	0	261
Net loss	0	0	0	0	(4,009)	0	(4,009)
Net unrealized gain (loss)	$ 0	$ 0	0	0	0	(219)	(219)
Balance (in shares) at Dec. 31, 2024	281	1,702
Balance at Dec. 31, 2024	$ 0	$ 190,643	$ (119)	$ 82,957	$ (244,307)	$ (1,080)	$ 28,094