Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net Income (Loss) Attributable to Parent	$ (838)	$ 11,039	$ 4,548	$ 22,423
Other comprehensive income (loss):
Available-for-sale securities, Pre-tax	(13)	(12)	(38)	(20)
Available-for-sale securities, Tax	3	3	10	5
Available-for-sale securities, Net of Tax	(10)	(9)	(28)	(15)
Postemployment severance actuarial change, Pre-tax	124	296	302	445
Postemployment severance actuarial change, Tax	(32)	(76)	(78)	(115)
Postemployment severance actuarial change, Net of Tax	92	220	224	330
Reclassification to (earnings) loss:
Amortization of actuarial change, Pre-tax	(109)	(90)	(221)	(178)
Amortization of actuarial change, Tax	28	23	57	46
Amortization of actuarial change, Net of Tax	(81)	(67)	(164)	(132)
Other comprehensive income (loss), Pre-tax	2	194	43	247
Other comprehensive income (loss), Tax	(1)	(50)	(11)	(64)
Other comprehensive income (loss), Net of Tax	1	144	32	183
Total comprehensive income (loss)	$ (837)	$ 11,183	$ 4,580	$ 22,606