Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Jun. 30, 2019	$ 14,656	$ 36,487	$ (1,543)	$ 1,566	$ 51,166
Net income		2,943			2,943
Other comprehensive income (loss)				536	536
Cash dividends declared		(739)			(739)
Shares associated with stock awards	41		89		130
Balance at Dec. 31, 2019	14,697	38,691	(1,454)	2,102	54,036
Balance at Sep. 30, 2019	14,697	37,622	(1,454)	2,128	52,993
Net income		1,440			1,440
Other comprehensive income (loss)				(26)	(26)
Cash dividends declared		(371)			(371)
Balance at Dec. 31, 2019	14,697	38,691	(1,454)	2,102	54,036
Balance at Jun. 30, 2020	19,974	40,460	(1,454)	4,260	63,240
Net income		4,908			4,908
Other comprehensive income (loss)				269	269
Cash dividends declared		(876)			(876)
Shares associated with stock awards	37		130		167
Balance at Dec. 31, 2020	20,011	44,492	(1,324)	4,529	67,708
Balance at Sep. 30, 2020	20,011	42,424	(1,324)	4,316	65,427
Net income		2,507			2,507
Other comprehensive income (loss)				213	213
Cash dividends declared		(439)			(439)
Balance at Dec. 31, 2020	$ 20,011	$ 44,492	$ (1,324)	$ 4,529	$ 67,708