Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Cash Flows from Operating Activities
Net Income	$ 29,483	$ 5,612
Adjustments to reconcile net income to net cash provided by operating activites:
Depreciation and amortization	15,528	13,474
Non-cash stock compensation expense	3,147	2,741
Loss on pension termination	4,652	0
Provision for deferred income taxes	(4,431)	(2,296)
Provision for bad debts and cash discounts	284	(227)
Loss on impairment of goodwill	0	5,644
Loss on impairment of patent applications	61	323
Loss on impairment of Fixed Assets	914	0
Accretion for asset retirement obligation	161	145
Loss on the disposals of property, plant and equipment	130	334
(Increase) decrease in:
Accounts receivable	(7,899)	(10,654)
Inventories	(2,204)	(13,087)
Prepaid expenses	1,082	372
Deferred income taxes	510	715
Other assets	59	1,607
Increase (decrease) in:
Accounts payable	3,241	5,002
Accrued expenses	6,455	4,702
Deferred compensation	(47)	189
Pension and postretirement benefits	(1,085)	(1,938)
Other liabilities	(277)	(3,641)
Total Adjustments	20,281	3,405
Net Cash Provided by Operating Activities	49,764	9,017
Cash Flows from Investing Activities
Capital expenditures	(24,368)	(22,010)
Proceeds from sale of property, plant and equipment	70	21
Acquisition of equity in Agromex	(269)	0
Net Cash Used in Investing Activities	(24,567)	(21,989)
Cash Flows from Financing Activities
Proceeds from issuance of notes payable	0	25,000
Principal payments on notes payable	(1,000)	(1,000)
Payments of Debt Issuance Costs	(7)	(114)
Dividends paid	(7,433)	(7,377)
Purchase of treasury stock	(1,078)	(11,806)
Net Cash (Used in) Provided by Financing Activities	(9,518)	4,703
Effect of exchange rate changes on cash and cash equivalents	(223)	(24)
Net Increase (Decrease) in Cash and Cash Equivalents	15,456	(8,293)
Cash and Cash Equivalents, Beginning of Year	16,298	24,591
Cash and Cash Equivalents, End of Year	31,754	16,298
Other cash flows:
Interest payments, net of amounts capitalized	1,135	767
Income tax payments (refunds)	7,367	(178)
Noncash investing and financing activities:
Capital expenditures accrued, but not paid	4,279	3,558
Cash dividends declared and accrued, but not paid	$ 1,927	$ 1,851