Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2020	Jul. 31, 2020
Current Assets
Cash and cash equivalents	$ 31,291	$ 40,890
Accounts receivable, less allowance of   $1,036 and $1,078 at October 31, 2020 and July 31, 2020, respectively	39,212	34,911
Inventories	23,493	23,893
Prepaid repairs expense	6,106	5,662
Prepaid expenses and other assets	2,183	3,064
Total Current Assets	102,285	108,420
Property, Plant and Equipment
Cost	262,325	261,988
Less accumulated depreciation and amortization	(171,287)	(169,040)
Total Property, Plant and Equipment, Net	91,038	92,948
Other Assets
Goodwill	9,262	9,262
Other intangibles, net of accumulated amortization of $483 and $457 at October 31, 2020 and July 31, 2020, respectively	1,625	1,566
Customer list, net of accumulated amortization of $6,995 and $6,887 at October 31, 2020 and July 31, 2020, respectively	790	898
Deferred income taxes	6,587	7,302
Operating lease right-of-use assets	9,227	9,816
Other	6,557	5,670
Total Other Assets	34,048	34,514
Total Assets	227,371	235,882
Current Liabilities
Current maturities of notes payable	1,000	1,000
Accounts Payable	9,745	12,529
Dividends payable	1,807	1,808
Operating lease liabilities	2,066	2,170
Accrued expenses	19,852	28,700
Total Current Liabilities	34,470	46,207
Noncurrent Liabilities
Notes payable, net of unamortized debt issuance costs of $143 and $150 at October 31, 2020 and July 31, 2020, respectively	8,857	8,848
Deferred compensation	5,310	5,140
Pension and postretirement benefits	15,184	15,140
Long-term operating lease liabilities	8,636	9,135
Other	4,598	3,448
Total Noncurrent Liabilities	42,585	41,711
Total Liabilities	77,055	87,918
Stockholders’ Equity
Additional paid-in capital	45,779	44,993
Retained earnings	178,761	176,579
Noncontrolling interest	(209)	(174)
Accumulated Other Comprehensive Loss:
Pension and postretirement benefits	(11,866)	(11,994)
Cumulative translation adjustment	12	(260)
Total Accumulated Other Comprehensive Loss	(11,854)	(12,254)
Less Treasury Stock, at cost (3,106,748 Common and 346,491 Class B shares at October 31, 2020 and 3,090,230 Common and 335,816 Class B shares at July 31, 2020)	(63,253)	(62,269)
Total Stockholders' Equity	150,316	147,964
Total Liabilities & Stockholders’ Equity	227,371	235,882
Common Stock
Stockholders’ Equity
Common Stock, Value, Issued	851	845
Common Class B
Stockholders’ Equity
Common Stock, Value, Issued	$ 241	$ 244