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, 2020	$ 861	$ 11,017	$ 118,263	$ (428)	$ (908)	$ 128,805
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(941)			(941)
Net Income			11,070			11,070
Other comprehensive loss, net of taxes				(198)		(198)
Balance at Dec. 31, 2020	861	11,017	128,392	(626)	(908)	138,736
Balance at Sep. 30, 2020	861	11,017	122,670	(618)	(908)	133,022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared			(473)			(473)
Net Income			6,195			6,195
Other comprehensive loss, net of taxes				(8)		(8)
Balance at Dec. 31, 2020	861	11,017	128,392	(626)	(908)	138,736
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 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 loss, net of taxes				(1,218)		(1,218)
Balance at Dec. 31, 2021	$ 861	$ 11,017	$ 152,746	$ (3,733)	$ (908)	$ 159,983