Consolidated Statements Of Shareholders’ Equity (USD $)	Common Stock [Member]	Retained Earnings [Member]	Total
Balance at Jun. 30, 2010	$ 99,963,000	$ 44,255,000	$ 144,218,000
Balance (in Shares) at Jun. 30, 2010	24,054,000
Net income		10,828,000	10,828,000
Stock compensation awards	41,000		41,000
Stock compensation awards (in Shares)	6,000
Purchase of treasury shares, net	(96,000)		(96,000)
Purchase of treasury shares, net (in Shares)	(20,000)
Deferred stock compensation	126,000		126,000
Stock option expense	851,000		851,000
Stock options exercised, net	59,000		59,000
Stock options exercised, net (in Shares)	7,000		7,000
Dividends		(4,809,000)	(4,809,000)
Balance at Jun. 30, 2011	100,944,000	50,274,000	151,218,000
Balance (in Shares) at Jun. 30, 2011	24,047,000
Net income		3,224,000	3,224,000
Stock compensation awards	48,000		48,000
Stock compensation awards (in Shares)	7,000
Purchase of treasury shares, net	(141,000)		(141,000)
Purchase of treasury shares, net (in Shares)	(21,000)
Deferred stock compensation	124,000		124,000
Stock option expense	410,000		410,000
Stock options exercised, net	14,000		14,000
Stock options exercised, net (in Shares)	3,000		2,750
Dividends		(5,529,000)	(5,529,000)
Balance at Jun. 30, 2012	101,399,000	47,969,000	149,368,000
Balance (in Shares) at Jun. 30, 2012	24,036,000
Net income		(123,000)	(123,000)
Stock compensation awards	57,000		57,000
Stock compensation awards (in Shares)	8,000
Purchase of treasury shares, net	(150,000)		(150,000)
Purchase of treasury shares, net (in Shares)	(22,000)
Deferred stock compensation	169,000		169,000
Stock option expense	842,000		842,401
Stock options exercised, net	175,000		175,000
Stock options exercised, net (in Shares)	35,000		35,500
Dividends		(8,648,000)	(8,648,000)
Balance at Jun. 30, 2013	$ 102,492,000	$ 39,198,000	$ 141,690,000
Balance (in Shares) at Jun. 30, 2013	24,057,000