Income Taxes - Reconciliation of Statutory and Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax (expense) benefit computed at the statutory federal rate:	$ (8,640)	$ 4,499
Return to provision adjustments	(2)	(20)
Depletion in excess of tax basis	190	176
State income taxes, net of federal tax benefit	(1,020)	523
Permanent differences related to stock-based compensation and other	3	(55)
Federal valuation allowance	623	(570)
EOR credit benefit	377	336
Other	(44)	95
Income tax (expense) benefit	$ (8,513)	$ 4,984
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income tax (expense) benefit computed at the statutory federal rate:	21.00%	21.00%
Return to provision adjustments		(0.10%)
Depletion in excess of tax basis	(0.50%)	0.80%
State income taxes, net of federal tax benefit	2.50%	2.40%
Permanent differences related to stock-based compensation and other		(0.30%)
Federal valuation allowance	(1.50%)	(2.70%)
EOR credit benefit	(0.90%)	1.60%
Other	0.10%	0.60%
Income tax (expense) benefit	20.70%	23.30%