Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2022	Jul. 31, 2021
Current Assets
Cash and cash equivalents	$ 16,298	$ 24,591
Accounts receivable, less allowance of $922 and $1,174 in 2022 and 2021, respectively	51,683	40,923
Inventories, net	35,562	23,598
Prepaid repairs expense	7,474	6,088
Prepaid expenses and other assets	3,664	6,742
Total Current Assets	114,681	101,942
Property, Plant and Equipment
Buildings and leasehold improvements	40,294	40,181
Machinery and equipment	165,350	162,930
Office furniture and equipment	17,524	21,685
Vehicles	15,470	17,543
Gross depreciable assets	238,638	242,339
Less accumulated depreciation and amortization	(175,374)	(178,885)
Net depreciable assets	63,264	63,454
Construction in progress	24,496	14,627
Land and mineral rights	20,106	17,859
Total Property, Plant and Equipment, Net	107,866	95,940
Other Assets
Goodwill	3,618	9,262
Trademarks and patents, net of accumulated amortization of $524 and $385 in 2022 and 2021, respectively	1,445	1,743
Customer list, net of accumulated amortization of $7,608 and $7,321 in 2022 and 2021, respectively	177	464
Deferred income taxes	3,677	2,096
Operating lease right-of-use assets	10,601	8,619
Other	7,546	7,500
Total Other Assets	27,064	29,684
Total Assets	249,611	227,566
Current Liabilities
Current maturities of notes payable	1,000	1,000
Accounts Payable	13,401	9,206
Dividends payable	1,851	1,865
Operating lease liabilities	2,178	2,036
Accrued Expenses	30,085	24,883
Total Current Liabilities	48,515	38,990
Noncurrent Liabilities
Notes payable, net of unamortized debt issuance costs of $202 and $122 in 2022 and 2021, respectively	31,798	7,878
Deferred compensation	4,559	4,370
Pension and postretirement benefits	798	4,922
Long-term operating lease liabilities	9,749	8,022
Other	3,843	4,152
Total Noncurrent Liabilities	50,747	29,344
Total Liabilities	99,262	68,334
Stockholders’ Equity
Additional paid-in capital	52,467	48,271
Retained earnings	178,754	180,443
Noncontrolling interest	(369)	(307)
Accumulated Other Comprehensive Loss
Pension and postretirement benefits	(2,242)	(4,428)
Cumulative translation adjustment	59	311
Total Accumulated Other Comprehensive Loss	(2,183)	(4,117)
Less treasury stock, at cost (3,609,938 Common and 351,641 Class B shares in 2022 and 3,192,702 Common and 346,491 Class B shares in 2021)	(79,428)	(66,154)
Total Stockholders’ Equity	150,349	159,232
Total Liabilities and Stockholders’ Equity	249,611	227,566
Common Stock
Stockholders’ Equity
Common Stock, par value $.10	868	856
Common Class B
Stockholders’ Equity
Common Stock, par value $.10	$ 240	$ 240