Net Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Net income (loss) attributable to common stockholders—basic	$ 2,490	$ (1,295)	$ 8,960	$ (5,439)
Net income (loss) attributable to nonvested restricted stockholders	16	(11)	61	(45)
Net income (loss)	$ 2,506	$ (1,306)	$ 9,021	$ (5,484)
Weighted average common shares outstanding—basic	15,955,227	15,600,040	15,865,595	15,540,697
Shares issuable under stock options	126,959	0	98,160	0
Weighted average common shares outstanding—diluted	16,082,186	15,600,040	15,963,755	15,540,697
Net income (loss) per common share—basic	$ 0.16	$ (0.08)	$ 0.57	$ (0.35)
Net income (loss) per common share—diluted	$ 0.16	$ (0.08)	$ 0.57	$ (0.35)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				567,088