Note 10. Subsequent event (Details)	6 Months Ended
	Dec. 31, 2017 USD ($) shares	Jun. 30, 2017 shares
Subsequent Events [Abstract]
Short-term Debt | $	$ 645,000
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred Stock, Voting Rights	13
Debt Instrument, Convertible, Conversion Ratio	2.15
Conversion of Stock, Shares Converted	4,300,000