Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)	The 1984 ESOP [Member] Common Stock [Member] Common Class A [Member]	The 1984 ESOP [Member] Additional Paid-in Capital [Member]	The 1984 ESOP [Member]	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Jun. 30, 2014				$ 6,166,000	$ 795,000	$ 54,063,000	$ 95,715,000	$ (20,425,000)	$ 136,314,000
Total comprehensive income (loss)							5,807,000	(20,742,000)	(14,935,000)
Dividends ($0.30 per share)							(2,095,000)		(2,095,000)
Repurchase of shares				(1,000)	(3,000)	(60,000)			(64,000)
Issuance of stock under ESOP	12,000	184,000	196,000
Issuance of stock under Long Term Incentive Plan				3,000		49,000			52,000
Issuance of stock under ESPP					14,000	111,000			125,000
Issuance of stock for length of service awards				5,000		71,000			76,000
Stock-based compensation						163,000			163,000
Conversion of class B to class A				30,000	(30,000)
Accumulated balance consists of:
Translation loss								(39,031,000)
Pension and postretirement plans, net of taxes								(2,136,000)
								(41,167,000)	(41,167,000)
Balance at Mar. 31, 2015				$ 6,215,000	$ 776,000	$ 54,581,000	$ 99,427,000	$ (41,167,000)	$ 119,832,000