Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Jun. 30, 2011
Current assets:
Cash	$ 17,502,000	$ 21,572,000
Short-term investments	6,282,000	6,421,000
Accounts receivable (less allowance for doubtful accounts of $965 and $416, respectively)	42,167,000	45,567,000
Inventories	69,895,000	58,789,000
Current deferred tax asset	7,620,000	6,100,000
Prepaid expenses and other current assets	7,764,000	5,494,000
Total current assets	151,230,000	143,943,000
Property, plant and equipment, net	53,597,000	56,265,000
Taxes receivable	3,814,000	3,594,000
Deferred tax assets, net	29,842,000	21,407,000
Intangible assets, net	8,755,000	231,000
Goodwill	3,034,000
Other assets	1,894,000	1,739,000
Total assets	252,166,000	227,179,000
Current liabilities:
Notes payable and current maturities	1,800,000	8,238,000
Accounts payable and accrued expenses	20,912,000	22,030,000
Accrued compensation	7,299,000	7,129,000
Total current liabilities	30,011,000	37,397,000
Deferred tax liabilities	2,530,000	2,806,000
Other tax obligations, as adjusted (Note 17)	10,590,000	11,127,000
Long-term debt	29,387,000	721,000
Postretirement benefit and pension obligations	51,810,000	22,467,000
Total liabilities	124,328,000	74,518,000
Stockholders’ equity:
Additional paid-in capital, as adjusted (Note 17)	51,941,000	51,411,000
Retained earnings, as adjusted (Note 17)	94,661,000	96,477,000
Accumulated other comprehensive loss	(25,534,000)	(1,961,000)
Total stockholders’ equity	127,838,000	152,661,000
Total liabilities and stockholders’ equity	252,166,000	227,179,000
Common Class A [Member]
Stockholders’ equity:
Common Stock	6,017,000	5,933,000
Common Class B [Member]
Stockholders’ equity:
Common Stock	$ 753,000	$ 801,000