6. Earnings (Loss) per common share (Details Narrative) - shares	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Common stock issuable upon the exercise of outstanding stock options	33,500	33,500	38,500	38,500