Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Common Class A [Member]
Stockholders' equity:
Common stock	$ 6,238	$ 6,224
Common Class B [Member]
Stockholders' equity:
Common stock	781	789
Cash	12,939	11,108
Short-term investments	7,565	7,855
Accounts receivable (less allowance for doubtful accounts of $609 and $612, respectively)	29,172	40,311
Inventories	60,090	63,003
Current deferred income tax assets	4,253	4,554
Prepaid expenses and other current assets	6,777	6,582
Total current assets	120,796	133,413
Property, plant and equipment, net	42,867	44,413
Income taxes receivable	3,209	3,383
Deferred income tax assets, net of current portion	18,715	18,803
Intangible assets, net	6,954	7,125
Goodwill	3,034	3,034
Other assets	2,149	2,101
Total assets	197,724	212,272
Notes payable and current maturities of long-term debt	1,534	1,552
Accounts payable	8,853	9,471
Accrued expenses	5,227	7,011
Accrued compensation	4,325	5,565
Total current liabilities	19,939	23,599
Long-term debt, net of current portion	18,773	18,552
Other income tax obligations	4,785	4,607
Deferred income tax liabilities	1,520	1,548
Postretirement benefit and pension obligations	48,838	49,536
Total liabilities	93,855	97,842
Additional paid-in capital	54,964	54,869
Retained earnings	97,282	98,164
Accumulated other comprehensive loss	(55,396)	(45,616)
Total stockholders' equity	103,869	114,430
Total liabilities and stockholders’ equity	$ 197,724	$ 212,272