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7. Earnings (Loss) per common share (Details) (USD $)
3 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Earnings Loss Per Common Share Details    
Net income/(loss) $ (62,200) $ 59,400
Weighted average common shares outstanding 1,335,712 1,196,577
Effect of dilutive securities    14,924
Weighted average dilutive common shares outstanding 1,335,712 1,211,501
Basic earnings/(loss) per common share $ (0.05) $ 0.05
Diluted earnings/(loss) per common share $ (0.05) $ 0.05