CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance (shares) at Jun. 30, 2020	32,957
Balance at Jun. 30, 2020	$ 33	$ 41,291	$ 32,800		$ 74,124
Increase (Decrease) in Stockholders' Equity
Issuance of restricted common stock (shares)	561
Issuance of restricted common stock	$ 1	(1)
Common stock repurchases, including stock surrendered for tax withholding				$ (7)	(7)
Retirements of treasury stock (in shares)	(3)
Retirements of treasury stock		(7)		7
Stock-based compensation		1,258			1,258
Net income (loss)			(16,438)		(16,438)
Common stock dividends paid			(4,342)		(4,342)
Balance (shares) at Jun. 30, 2021	33,515
Balance at Jun. 30, 2021	$ 34	42,541	12,020		54,595
Increase (Decrease) in Stockholders' Equity
Issuance of restricted common stock (shares)	336
Forfeitures of restricted stock (shares)	(373)
Forfeitures of restricted stock	$ (1)	1
Common stock repurchases, including stock surrendered for tax withholding				(38)	(38)
Retirements of treasury stock (in shares)	(7)
Retirements of treasury stock		(38)		$ 38
Stock-based compensation		125			125
Net income (loss)			32,628		32,628
Common stock dividends paid			(11,796)		(11,796)
Balance (shares) at Jun. 30, 2022	33,471
Balance at Jun. 30, 2022	$ 33	$ 42,629	$ 32,852		$ 75,514