Weighted Average Shares Outstanding used in Calculation of Basic and Diluted Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Income (loss) from continuing operations	$ (364,000)	$ (329,000)	$ (418,000)	$ 17,000
Income from discontinued operations	16,000	37,000	53,000	137,000
Net income (loss)	$ (348,000)	$ (292,000)	$ (365,000)	$ 154,000
Basic:
Weighted average common shares outstanding	3,319,180	3,272,350	3,299,379	3,272,350
Shares used in the computation of basic per share data	3,319,180	3,272,350	3,299,379	3,272,350
Diluted:
Shares used in the computation of basic per share data	3,319,180	3,272,350	3,299,379	3,272,350
Net shares assumed issued using the treasury stock method for outstanding common stock options				20,158
Shares used in the computation of diluted per share data	3,319,180	3,272,350	3,299,379	3,292,508
Basic per share data:
Income (loss) from continuing operations	$ (0.11)	$ (0.10)	$ (0.13)	$ 0.01
Income from discontinued operations		$ 0.01	$ 0.02	$ 0.04
Net income (loss)	$ (0.11)	$ (0.09)	$ (0.11)	$ 0.05
Diluted per share data:
Income (loss) from continuing operations	$ (0.11)	$ (0.10)	$ (0.13)	$ 0.01
Income from discontinued operations		$ 0.01	$ 0.02	$ 0.04
Net income (loss)	$ (0.11)	$ (0.09)	$ (0.11)	$ 0.05