Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jun. 30, 2021	9,004,365			2,567,797
Balance at Jun. 30, 2021	$ 88	$ 29,456	$ 66,949	$ (15,849)	$ (561)	$ 80,083
Issuance of common stock for restricted stock grants (in shares)	135,850			0
Issuance of common stock for restricted stock grants	$ 1	(1)	0	$ 0	0	0
Compensation expense related to stock compensation plans	$ 0	968	0	$ 0	0	$ 968
Treasury Stock Acquired, Shares (in shares)	0			435,080		435,080
Repurchase of common stock	$ 0	0	0	$ (5,503)	0	$ (5,503)
Forfeiture of restricted stock (in shares)	0			19,832
Forfeiture of restricted stock	$ 0	0	0	$ 0	0	0
Share correction	0	0	0	0	0	0
Change in minimum pension liability, net of tax	0	0	0	0	94	94
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	2,166	2,166
Net income (loss)	$ 0	0	10,712	$ 0	0	10,712
Repurchase of common stock						$ (5,503)
Balance (in shares) at Jun. 30, 2022	9,191,406			3,061,795		6,129,611
Balance at Jun. 30, 2022	$ 89	30,423	77,661	$ (21,352)	1,699	$ 88,520
Share correction (in shares)	51,191			39,086
Issuance of common stock for restricted stock grants (in shares)	123,000			0
Issuance of common stock for restricted stock grants	$ 2	(2)	0	$ 0	0	0
Compensation expense related to stock compensation plans	$ 0	1,015	0	$ 0	0	$ 1,015
Treasury Stock Acquired, Shares (in shares)	0			164,399		164,399
Forfeiture of restricted stock (in shares)	0			14,399
Forfeiture of restricted stock	$ 0	0	0	$ 0	0	$ 0
Change in minimum pension liability, net of tax	0	0	0	0	64	64
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	(1,846)	(1,846)
Net income (loss)	0	0	2,522	0	0	2,522
Repurchase of common stock	$ 0	0	0	$ (1,503)	0	$ (1,503)
Balance (in shares) at Jun. 30, 2023	9,314,406			3,240,593		6,073,813
Balance at Jun. 30, 2023	$ 91	$ 31,436	$ 80,183	$ (22,855)	$ (83)	$ 88,772