Net Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net income attributable to common stockholders—basic	$ 2,885	$ 4,676	$ 5,391	$ 6,468
Net income attributable to nonvested restricted stockholders	11	33	20	46
Net income	$ 2,896	$ 4,709	$ 5,411	$ 6,514
Weighted average common shares outstanding—basic	16,030,167	15,847,958	16,016,984	15,825,100
Shares issuable under stock options	153,971	116,724	141,741	79,356
Weighted average common shares outstanding—diluted	16,184,138	15,964,682	16,158,725	15,904,456
Net income per common share—basic	$ 0.18	$ 0.30	$ 0.34	$ 0.41
Net income per common share—diluted	$ 0.18	$ 0.29	$ 0.33	$ 0.41
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	69,073	297,896	988	157,962