Stock-based Compensation (Details 1) (USD $)	3 Months Ended
	Sep. 30, 2013
Number of Shares Subject to Option
Balance, beginning	159,250
Granted	31,600
Exercised	(8,570)
Forfeited or expired
Outstanding, ending	182,280
Vested or expected to vest, end of period	174,284
Exercisable, end of period	121,330
Weight Average Exercise Price
Balance, beginning	$ 21.12
Granted	$ 27.22
Exercised	$ 19.41
Forfeited or expired
Outstanding, ending	$ 22.26
Vested or expected to vest, end of period	$ 22.08
Exercisable, end of period	$ 20.26
Weighted Average Remaining Contractual Term
Balance, beginning	6 years 3 months 18 days
Granted	9 years 10 months 20 days
Outstanding, ending	6 years 8 months 26 days
Vested or expected to vest, end of period	6 years 7 months 13 days
Exercisable, end of period	5 years 5 months 12 days
Aggregate Intrinsic Value
Outstanding end of period	$ 1,155,976
Vested or expected to vest, end of period	1,136,797
Exercisable, end of period	$ 1,011,991