Stockholders' Equity (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Balance			$ 70,709,000
Restricted stock grants			0
Stock based compensation expense			530,000
Stock options exercised			142,000
Tax asset from vested restricted stock and stock options exercised			138,000
Net income	2,456,000	1,381,000	7,837,000	4,786,000
Dividends			(6,679,000)
Balance	72,677,000		72,677,000
Common Stock [Member]
Balance			32,210,000
Balance (in shares)			8,828,103
Restricted stock grants			0
Restricted stock grants (in shares)			33,100
Stock based compensation expense			530,000
Stock options exercised			142,000
Stock options exercised (in shares)			17,389
Tax asset from vested restricted stock and stock options exercised			138,000
Net income			0
Dividends			0
Balance	33,020,000		33,020,000
Balance (in shares)	8,878,592		8,878,592
Treasury Stock [Member]
Balance			(1,926,000)
Balance (in shares)			202,075
Restricted stock grants			0
Restricted stock grants (in shares)			0
Stock based compensation expense			0
Stock options exercised			0
Stock options exercised (in shares)			0
Tax asset from vested restricted stock and stock options exercised			0
Net income			0
Dividends			0
Balance	(1,926,000)		(1,926,000)
Balance (in shares)	202,075		202,075
Retained Earnings [Member]
Balance			40,425,000
Restricted stock grants			0
Stock based compensation expense			0
Stock options exercised			0
Tax asset from vested restricted stock and stock options exercised			0
Net income			7,837,000
Dividends			(6,679,000)
Balance	$ 41,583,000		$ 41,583,000