Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013
Current Assets
Cash and cash equivalents	$ 16,230	$ 24,035
Restricted Cash	129	0
Short-term investments	2,640	18,459
Accounts receivable, less allowance of $707 and $641 in 2014 and 2013, respectively	30,997	31,148
Inventories	24,483	20,723
Deferred income taxes	1,570	3,986
Prepaid repairs expense	3,722	3,458
Prepaid expenses and other assets	3,745	1,563
Total Current Assets	83,516	103,372
Property, Plant and Equipment
Buildings and leasehold improvements	28,557	28,475
Machinery and equipment	120,081	112,056
Office furniture and equipment	10,244	9,880
Vehicles	12,099	11,615
Gross depreciable assets	170,981	162,026
Less accumulated depreciation and amortization	(124,199)	(118,082)
Net depreciable assets	46,782	43,944
Construction in progress	11,759	5,845
Land and mineral rights	16,355	16,266
Total Property, Plant and Equipment, Net	74,896	66,055
Other Assets
Goodwill	9,034	5,162
Trademarks and patents, net of accumulated amortization of $420 and $427 in 2014 and 2013, respectively	660	581
Debt issuance costs, net of accumulated amortization of $522 and $455 in 2014 and 2013, respectively	243	309
Licensing agreements and non-compete agreements, net of accumulated amortization of $1,145 and $1,861 in 2014 and 2013, respectively	155	378
Customer list, net of accumulated amortization of $764 in 2014	7,020	0
Deferred income taxes	4,448	2,164
Other	6,232	5,538
Total Other Assets	27,792	14,132
Total Assets	186,204	183,559
Current Liabilities
Current maturities of notes payable	3,500	3,500
Accounts payable	7,352	6,483
Dividends payable	1,311	1,236
Accrued expenses
Salaries, wages and commissions	4,448	9,087
Trade promotions and advertising	2,182	2,824
Freight	2,504	2,154
Other	8,203	6,163
Total Current Liabilities	29,500	31,447
Noncurrent Liabilities
Notes payable	18,900	22,400
Deferred compensation	9,267	8,569
Pension and postretirement benefits	22,273	16,362
Other	1,956	1,843
Total Noncurrent Liabilities	52,396	49,174
Total Liabilities	81,896	80,621
Stockholders’ Equity
Additional paid-in capital	33,130	31,317
Restricted unearned stock compensation	(2,225)	(1,824)
Retained earnings	136,039	132,750
Accumulated Other Comprehensive Income
Unrealized gain on marketable securities	114	86
Pension and postretirement benefits	(8,632)	(5,608)
Cumulative translation adjustment	255	487
Total Accumulated Other Comprehensive Income	(8,263)	(5,035)
Less Treasury Stock, at cost (2,915,651 Common and 324,741 Class B shares in 2014 and 2,914,567 Common and 324,741 Class B shares in 2013)	(55,404)	(55,296)
Total Stockholders’ Equity	104,308	102,938
Total Liabilities and Stockholders’ Equity	186,204	183,559
Common Stock
Stockholders’ Equity
Common Stock, par value $.10	792	787
Common Class B
Stockholders’ Equity
Common Stock, par value $.10	$ 239	$ 239