Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Cash Flows from Operating Activities
Net Income	$ 5,612	$ 10,980
Adjustments to reconcile net income to net cash provided by operating activites:
Depreciation and amortization	13,474	14,177
Non-cash stock compensation expense	2,741	2,531
Deferred income taxes	(2,296)	2,760
Provision for bad debts and cash discounts	(227)	147
Loss on impairment of goodwill	5,644	0
Loss on impairment of patent applications	323	0
Loss on the disposals of property, plant and equipment	334	52
(Increase) decrease in:
Accounts receivable	(10,654)	(5,955)
Inventories	(12,109)	518
Prepaid expenses	(1,014)	(4,067)
Deferred income taxes	715	2,436
Other assets	2,138	544
Increase (decrease) in:
Accounts payable	5,002	(2,411)
Accrued expenses	4,703	(4,097)
Deferred compensation	189	(770)
Pension and postretirement benefits	(1,938)	(2,652)
Other liabilities	(2,799)	(557)
Total Adjustments	4,226	2,656
Net Cash Provided by Operating Activities	9,838	13,636
Cash Flows from Investing Activities
Capital expenditures	(22,831)	(18,839)
Proceeds from sale of property, plant and equipment	21	9
Net Cash Used in Investing Activities	(22,810)	(18,830)
Cash Flows from Financing Activities
Proceeds from issuance of notes payable	25,000	0
Principal payments on notes payable	(1,000)	(1,000)
Payments of Debt Issuance Costs	(114)	0
Dividends paid	(7,377)	(7,192)
Purchase of treasury stock	(11,806)	(3,130)
Net Cash Provided by (Used in) Financing Activities	4,703	(11,322)
Effect of exchange rate changes on cash and cash equivalents	(24)	217
Net Decrease in Cash and Cash Equivalents	(8,293)	(16,299)
Cash and Cash Equivalents, Beginning of Year	24,591	40,890
Cash and Cash Equivalents, End of Year	16,298	24,591
Other cash flows:
Interest payments, net of amounts capitalized	767	400
Income tax (refunds) payments	(178)	6,151
Right-of-use assets obtained in exchange for new operating lease liabilities	4,377	1,036
Noncash investing and financing activities:
Capital expenditures accrued, but not paid	3,558	1,926
Cash dividends declared and accrued, but not paid	$ 1,851	$ 1,865