Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [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
Compensation expense related to stock compensation plans	$ 0	467	0	$ 0	0	$ 467
Treasury Stock Acquired, Shares (in shares)	0			190,394		190,394
Unrealized loss resulting from change in fair value of derivative instruments, net of tax	$ 0	0	0	$ 0	1,285	$ 1,285
Net income (loss)	0	0	5,103	0	0	5,103
Repurchase of common stock	$ 0	0	0	$ (2,537)	0	(2,537)
Forfeiture of restricted stock (in shares)	0			18,432
Forfeiture of restricted stock	$ 0	0	0	$ 0	0	0
Balance (in shares) at Dec. 31, 2021	9,004,365			2,776,623
Balance at Dec. 31, 2021	$ 88	29,923	72,052	$ (18,386)	724	84,401
Balance (in shares) at Sep. 30, 2021	9,004,365			2,584,821
Balance at Sep. 30, 2021	$ 88	29,678	70,205	$ (15,859)	393	84,505
Compensation expense related to stock compensation plans	$ 0	245	0	$ 0	0	$ 245
Treasury Stock Acquired, Shares (in shares)	0			189,702		189,702
Unrealized loss resulting from change in fair value of derivative instruments, net of tax	$ 0	0	0	$ 0	331	$ 331
Net income (loss)	0	0	1,847	0	0	1,847
Repurchase of common stock	$ 0	0	0	$ (2,527)	0	(2,527)
Forfeiture of restricted stock (in shares)	0			2,100
Forfeiture of restricted stock	$ 0	0	0	$ 0	0	0
Balance (in shares) at Dec. 31, 2021	9,004,365			2,776,623
Balance at Dec. 31, 2021	$ 88	29,923	72,052	$ (18,386)	724	84,401
Balance (in shares) at Jun. 30, 2022	9,191,406			3,061,795
Balance at Jun. 30, 2022	$ 89	30,423	77,661	$ (21,352)	1,699	88,520
Compensation expense related to stock compensation plans	$ 0	467	0	$ 0	0	$ 467
Treasury Stock Acquired, Shares (in shares)	0			115,365		115,365
Repurchase of common stock	$ 0	0	0	$ (1,059)	0	$ (1,059)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	(1,264)	(1,264)
Net income (loss)	$ 0	0	2,866	$ 0	0	2,866
Repurchase of common stock						(1,059)
Balance (in shares) at Dec. 31, 2022	9,191,406			3,177,160
Balance at Dec. 31, 2022	$ 89	30,890	80,527	$ (22,411)	435	89,530
Balance (in shares) at Sep. 30, 2022	9,191,406			3,108,590
Balance at Sep. 30, 2022	$ 89	30,658	78,714	$ (21,849)	2,244	89,856
Compensation expense related to stock compensation plans	$ 0	232	0	$ 0	0	$ 232
Treasury Stock Acquired, Shares (in shares)	0			68,570		68,570
Repurchase of common stock	$ 0	0	0	$ (562)	0	$ (562)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	(1,809)	(1,809)
Net income (loss)	$ 0	0	1,813	$ 0	0	1,813
Repurchase of common stock						(562)
Balance (in shares) at Dec. 31, 2022	9,191,406			3,177,160
Balance at Dec. 31, 2022	$ 89	$ 30,890	$ 80,527	$ (22,411)	$ 435	$ 89,530