Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Current assets:
Cash	$ 19,755	$ 17,502
Short-term investments	7,657	6,282
Accounts receivable (less allowance for doubtful accounts of $697 and $965, respectively)	37,875	42,167
Inventories	56,501	69,895
Current deferred tax asset	4,978	7,620
Prepaid expenses and other current assets	7,182	7,764
Total current assets	133,948	151,230
Property, plant and equipment, net	51,200	53,597
Taxes receivable	3,770	3,814
Deferred tax assets, net	28,274	29,842
Intangible assets, net	8,222	8,755
Goodwill	3,034	3,034
Other assets	2,346	1,894
Total assets	230,794	252,166
Current liabilities:
Notes payable and current maturities	1,557	1,800
Accounts payable and accrued expenses	17,084	20,912
Accrued compensation	5,304	7,299
Total current liabilities	23,945	30,011
Deferred tax liabilities	2,182	2,530
Other tax obligations	10,514	10,590
Long-term debt	24,252	29,387
Postretirement benefit and pension obligations	42,386	51,810
Other non-current liability	773
Total liabilities	104,052	124,328
Additional paid-in capital	52,613	51,941
Retained earnings	91,778	94,661
Accumulated other comprehensive loss	(24,476)	(25,534)
Total stockholders’ equity	126,742	127,838
Total liabilities and stockholders’ equity	230,794	252,166
Common Class A [Member]
Current liabilities:
Common Stock	6,077	6,017
Common Class B [Member]
Current liabilities:
Common Stock	$ 750	$ 753