Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Thousands	Common Class A [Member] The 1984 ESOP [Member]	Common Class A [Member]	Common Class B [Member] The 2013 ESOP [Member]	Common Class B [Member]	Additional Paid-in Capital [Member] The 1984 ESOP [Member]	Additional Paid-in Capital [Member] The 2013 ESOP [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	The 1984 ESOP [Member]	The 2013 ESOP [Member]	Total
Balance at Jun. 30, 2013		$ 6,077		$ 750			$ 52,613	$ 91,778	$ (24,476)			$ 126,742
Total comprehensive income (loss)								216	1,160			1,376
Dividends								(691)				(691)
Issuance of stock under ESOP	7		76		62	697				69	773
Issuance of stock for length of service awards		5					54					59
Stock-based compensation							55					55
Conversion of class B to class A		10		(10)
Balance at Sep. 30, 2013		6,099		816			53,481	91,303	(23,316)			128,383
Balance at Jun. 30, 2014		6,166		795			54,063	95,715	(20,425)			136,314
Translation loss									(25,259)
Pension and postretirement plans, net of taxes									(2,136)
									(27,395)			(27,395)
Total comprehensive income (loss)								923	(6,970)			(6,047)
Dividends								(697)				(697)
Repurchase of shares				(1)			(10)					(11)
Issuance of stock under ESOP	4				62					66
Issuance of stock for length of service awards		5					71					76
Stock-based compensation							49					49
Conversion of class B to class A		7		(7)
Balance at Sep. 30, 2014		$ 6,182		$ 787			$ 54,235	$ 95,941	$ (27,395)			$ 129,750