Nature of Business and Summary of Significant Accounting Policies - Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Schedule of Weighted Average Number of Diluted Shares Outstanding [Line Items]
Weighted average shares, basic EPS	19,066,000	19,416,000	19,225,000	19,382,000
Number of dilutive stock options	7,000	55,000	4,000	37,000
Weighted average shares, diluted EPS	19,073,000	19,471,000	19,229,000	19,419,000
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 395	$ 650	$ 1,505	$ 1,141
Net Income (Loss) Available to Common Stockholders, Diluted, Total	$ 395	$ 650	$ 1,505	$ 1,141
Earnings Per Share Basic	$ 0.02	$ 0.03	$ 0.08	$ 0.06
Earnings Per Share Diluted	$ 0.02	$ 0.03	$ 0.08	$ 0.06