Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2019	Jul. 31, 2018
Current Assets
Cash and cash equivalents	$ 21,862	$ 12,757
Short-term investments	0	7,124
Accounts receivable, less allowance of $644 and $817 in 2019 and 2018, respectively	35,459	33,602
Inventories, net	24,163	22,521
Prepaid repairs expense	4,708	4,111
Prepaid expenses and other assets	3,084	2,899
Total Current Assets	89,276	83,014
Property, Plant and Equipment
Buildings and leasehold improvements	38,852	38,534
Machinery and equipment	145,402	141,530
Office furniture and equipment	20,569	11,089
Vehicles	15,375	14,151
Gross depreciable assets	220,198	205,304
Less accumulated depreciation and amortization	(159,036)	(149,385)
Net depreciable assets	61,162	55,919
Construction in progress	12,519	13,985
Land and mineral rights	17,117	16,802
Total Property, Plant and Equipment, Net	90,798	86,706
Other Assets
Goodwill	9,262	9,262
Trademarks and patents, net of accumulated amortization of $299 and $267 in 2019 and 2018, respectively	1,599	1,220
Customer list, net of accumulated amortization of $6,297 and $5,540 in 2019 and 2018, respectively	1,488	2,245
Deferred income taxes	7,755	7,349
Other	5,049	4,886
Total Other Assets	25,153	24,962
Total Assets	205,227	194,682
Current Liabilities
Current maturities of notes payable	3,083	3,083
Accounts payable	8,092	6,543
Dividends payable	1,761	1,627
Accrued expenses
Salaries, wages and commissions	6,740	8,974
Trade promotions and advertising	1,588	1,280
Freight	2,635	1,767
Other	8,707	7,675
Total Current Liabilities	32,606	30,949
Noncurrent Liabilities
Notes payable, net of unamortized debt issuance costs of $31 and $60 in 2019 and 2018, respectively	3,052	6,107
Deferred compensation	6,014	6,100
Pension and postretirement benefits	23,721	15,906
Other	4,288	3,735
Total Noncurrent Liabilities	37,075	31,848
Total Liabilities	69,681	62,797
Stockholders’ Equity
Additional paid-in capital	41,300	38,473
Retained earnings	164,756	158,935
Noncontrolling interest	(14)	(18)
Accumulated Other Comprehensive Loss
Pension and postretirement benefits	(14,891)	(10,384)
Cumulative translation adjustment	(148)	(231)
Total Accumulated Other Comprehensive Loss	(15,039)	(10,615)
Less Treasury Stock, at cost (2,926,547 Common and 324,741 Class B shares in 2019 and 2,914,092 Common and 324,741 Class B shares in 2018)	(56,543)	(55,946)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	135,546	131,885
Total Liabilities and Stockholders’ Equity	205,227	194,682
Common Stock
Stockholders’ Equity
Common Stock, par value $.10	828	809
Common Class B
Stockholders’ Equity
Common Stock, par value $.10	$ 258	$ 247