INCOME TAXES Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Jul. 31, 2024
Deferred Tax Asset
Amortization	$ 0	$ 0
Depreciation	0	0
Lease liabilities	3,961	5,105
Lease right of use assets	0	0
Accrued expenses	4,494	4,347
Federal & State NOL carryforward	2,470	2,975
Stock-based compensation	2,214	1,894
Foreign NOL carryforward	2,197	1,889
Deferred compensation	1,931	1,603
Capitalized R&D	1,029	783
Reclamation	785	712
Other assets	555	693
Postretirement benefits	422	454
Inventories	185	435
Depletion	0	0
Allowance for credit losses	213	85
Other liabilities	0	0
Other liabilities - foreign	0	8
Valuation allowance	(2,846)	(2,470)
Total deferred tax assets	17,610	18,513
Deferred Tax Liability
Amortization	5,863	6,307
Depreciation	6,237	5,692
Lease liabilities	0	0
Lease right of use assets	3,670	4,778
Accrued expenses	0	0
Federal & State NOL carryforward	0	0
Stock-based compensation	0	0
Foreign NOL carryforward	0	0
Deferred compensation	0	0
Capitalized R&D	0	0
Reclamation	0	0
Other assets	0	0
Postretirement benefits	0	0
Inventories	0	0
Depletion	121	141
Allowance for credit losses	0	0
Other liabilities	428	33
Other liabilities - foreign	0	17
Valuation allowance	0	0
Total deferred tax liabilities	$ 16,319	$ 16,968