INCOME TAXES Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2023	Jul. 31, 2022
Deferred Tax Asset
Depreciation	$ 0	$ 0
Deferred compensation	1,246	1,499
Capitalized R&D	269	0
Postretirement benefits	478	209
Goodwill	0	62
Lease right of use assets	0	0
Lease liabilities	2,747	3,040
Allowance for doubtful accounts	135	95
Deferred marketing expenses	0	0
Other assets	608	1
Other liabilities	0	0
Accrued expenses	5,303	2,362
Tax credits	301	223
Amortization	935	1,046
Inventories	203	366
Depletion	0	0
Stock-based compensation	1,634	1,522
Reclamation	627	549
Other liabilities - foreign	0	0
Other assets - foreign	1,698	1,761
Valuation allowance	(1,698)	(1,761)
Total deferred tax assets	14,486	10,974
Deferred Tax Liability
Depreciation	4,338	4,356
Deferred compensation	0	0
Capitalized R&D	0	0
Postretirement benefits	0	0
Goodwill	(24)	0
Lease right of use assets	2,412	2,700
Lease liabilities	0	0
Allowance for doubtful accounts	0	0
Deferred marketing expenses	11	22
Other assets	0	0
Other liabilities	301	23
Accrued expenses	0	0
Tax credits	0	0
Amortization	0	0
Inventories	0	0
Depletion	158	154
Stock-based compensation	0	0
Reclamation	0	0
Other liabilities - foreign	41	42
Other assets - foreign	0	0
Valuation allowance	0	0
Total deferred tax liabilities	$ 7,285	$ 7,297