Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 12,859	$ 8,777
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,399	9,849
Amortization of investment net discount	0	(10)
Stock-based compensation	2,549	1,590
Deferred income taxes	1,367	277
Provision for bad debts and cash discounts	704	(151)
Loss on the sale of fixed assets	102	4
Curtailment gain on SERP Plan	(1,296)	0
(Increase) Decrease in assets:
Accounts receivable	(7,296)	(2,185)
Inventories	(72)	(4,248)
Prepaid expenses	120	(201)
Other assets	816	(564)
Increase (Decrease) in liabilities:
Accounts payable	3,859	2,873
Accrued expenses	4,612	(1,762)
Deferred compensation	129	(421)
Pension and postretirement benefits	(5,482)	1,287
Other liabilities	(1,101)	249
Total Adjustments	9,410	6,587
Net Cash Provided by Operating Activities	22,269	15,364
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(10,870)	(10,162)
Proceeds from Sale of Property, Plant, and Equipment	112	0
Purchases of short-term investments	0	(4,678)
Dispositions of short-term investments	0	11,082
Net Cash Used in Investing Activities	(10,758)	(3,758)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on notes payable	(3,082)	(3,083)
Dividends paid	(5,292)	(4,967)
Purchase of treasury stock	(4,620)	(141)
Contributions from noncontrolling interests	142	0
Net Cash Used in Financing Activities	(12,852)	(8,191)
Effect of exchange rate changes on Cash and Cash Equivalents	27	52
Net (Decrease) Increase in Cash and Cash Equivalents	(1,314)	3,467
Cash and Cash Equivalents, Beginning of Period	21,862	12,757
Cash and Cash Equivalents, End of Period	20,548	16,224
Supplemental disclosure of non-cash investing and financing activities:
Capital expenditures accrued, but not paid	784	468
Cash dividends declared and accrued, but not paid	$ 1,735	$ 1,689