Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2019	Jul. 31, 2018
Current Assets
Cash and cash equivalents	$ 16,224	$ 12,757
Short-term investments	730	7,124
Accounts receivable, less allowance of $676 and $817 at April 30, 2019 and July 31, 2018, respectively	35,906	33,602
Inventories	26,738	22,521
Prepaid repairs expense	4,110	4,111
Prepaid expenses and other assets	3,100	2,899
Total Current Assets	86,808	83,014
Property, Plant and Equipment
Cost	244,378	236,091
Less accumulated depreciation and amortization	(157,292)	(149,385)
Total Property, Plant and Equipment, Net	87,086	86,706
Other Assets
Goodwill	9,262	9,262
Trademarks and patents, net of accumulated amortization of $291 and $267 at April 30, 2019 and July 31, 2018, respectively	1,356	1,220
Customer list, net of accumulated amortization of $6,107 and $5,540 at April 30, 2019 and July 31, 2018, respectively	1,678	2,245
Deferred income taxes	7,013	7,349
Other	5,275	4,886
Total Other Assets	24,584	24,962
Total Assets	198,478	194,682
Current Liabilities
Current maturities of notes payable	3,083	3,083
Accounts payable	8,608	6,543
Dividends payable	1,689	1,627
Accrued expenses:
Salaries, wages and commissions	6,487	8,974
Trade promotions and advertising	864	1,280
Freight	3,831	1,767
Other	6,939	7,675
Total Current Liabilities	31,501	30,949
Noncurrent Liabilities
Notes payable, net of unamortized debt issuance costs of $39 and $60 at April 30, 2019 and July 31, 2018, respectively	3,045	6,107
Deferred compensation	5,679	6,100
Pension and postretirement benefits	16,756	15,906
Other	3,982	3,735
Total Noncurrent Liabilities	29,462	31,848
Total Liabilities	60,963	62,797
Stockholders’ Equity
Additional paid-in capital	40,487	38,473
Retained earnings	162,718	158,935
Stockholders' Equity Attributable to Noncontrolling Interest	(53)	(18)
Accumulated other comprehensive loss:
Pension and postretirement benefits	(9,947)	(10,384)
Cumulative translation adjustment	(238)	(231)
Total accumulated other comprehensive loss	(10,185)	(10,615)
Less Treasury Stock, at cost (2,926,374 Common and 324,741 Class B shares at April 30, 2019 and 2,914,092 Common and 324,741 Class B shares at July 31, 2018)	(56,537)	(55,946)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	137,515	131,885
Total Liabilities & Stockholders’ Equity	198,478	194,682
Common Stock
Stockholders’ Equity
Common Stock, Value, Issued	828	809
Common Class B
Stockholders’ Equity
Common Stock, Value, Issued	$ 257	$ 247