Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Jun. 30, 2021	$ 861	$ 11,017	$ 139,775	$ (1,161)	$ (908)	$ 149,584
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(1,020)			(1,020)
Net Income			13,991			13,991
Other comprehensive income (loss), net of taxes				(2,572)		(2,572)
Balance at Dec. 31, 2021	861	11,017	152,746	(3,733)	(908)	159,983
Balance at Sep. 30, 2021	861	11,017	146,381	(2,515)	(908)	154,836
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(512)			(512)
Net Income			6,877			6,877
Other comprehensive income (loss), net of taxes				(1,218)		(1,218)
Balance at Dec. 31, 2021	861	11,017	152,746	(3,733)	(908)	159,983
Balance at Jun. 30, 2022	861	11,017	165,127	(18,383)	(908)	157,714
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(1,098)			(1,098)
Net Income			16,234			16,234
Other comprehensive income (loss), net of taxes				(4,643)		(4,643)
Balance at Dec. 31, 2022	861	11,017	180,263	(23,026)	(908)	168,207
Balance at Sep. 30, 2022	861	11,017	173,617	(25,001)	(908)	159,586
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(552)			(552)
Net Income			7,198			7,198
Other comprehensive income (loss), net of taxes				1,975		1,975
Balance at Dec. 31, 2022	$ 861	$ 11,017	$ 180,263	$ (23,026)	$ (908)	$ 168,207