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, 2012		$ 6,017		$ 753			$ 51,941	$ 94,661	$ (25,534)			$ 127,838
Total comprehensive income (loss)								125	445			570
Dividends								(1,359)				(1,359)
Purchase of stock		(5)					(57)					(62)
Issuance of stock dividends under ESOP	12				128					140
Issuance of stock		2		14			114					130
Stock-based compensation							96					96
Conversion		25		(25)
Balance at Dec. 31, 2012		6,051		742			52,222	93,427	(25,089)			127,353
Balance at Jun. 30, 2013		6,077		750			52,613	91,778	(24,476)			126,742
Total comprehensive income (loss)								1,998	(975)			1,023
Dividends								(1,383)				(1,383)
Issuance of stock dividends under ESOP	13		76		124	697				137	773
Issuance of stock		5		13			174					192
Stock-based compensation							94					94
Conversion		16		(16)
Translation loss									(22,579)
Pension and postretirement plans, net of taxes									(2,872)
									(25,451)			(25,451)
Balance at Dec. 31, 2013		$ 6,111		$ 823			$ 53,702	$ 92,393	$ (25,451)			$ 127,578