7. Earnings (Loss) per common share (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Earnings Loss Per Common Share Details
Net income (loss)	$ (59,700)	$ 150,100	$ 77,500	$ 226,300
Weighted average common shares outstanding	1,390,433	1,337,663	1,382,519	1,336,844
Effect of dilutive securities		4,701	9,741	4,543
Weighted average dilutive common shares outstanding	1,390,433	1,342,364	1,392,260	1,341,387
Basic earnings/(loss) per common share	$ (0.04)	$ 0.11	$ 0.06	$ 0.17
Diluted earnings/(loss) per common share	$ (0.04)	$ 0.11	$ 0.06	$ 0.17