4. Fair Value of Financial Instruments (Details 2) - USD ($)	Mar. 31, 2017	Jun. 30, 2016
Cost	$ 298,700	$ 289,200
Fair Value	294,000	290,100
Unrealized Holding Gain (Loss)	(4,700)	900
Equity Securities
Cost	37,000	29,300
Fair Value	49,500	40,700
Unrealized Holding Gain (Loss)	12,500	11,400
Mutual Funds
Cost	261,700	259,900
Fair Value	244,500	249,400
Unrealized Holding Gain (Loss)	$ (17,200)	$ (10,500)