4. Fair Value of Financial Instruments (Details 2) - USD ($)	Dec. 31, 2016	Jun. 30, 2016
Cost	$ 296,900	$ 289,200
Fair Value	290,900	290,100
Unrealized Holding Gain (Loss)	(6,000)	900
Equity Securities
Cost	36,500	29,300
Fair Value	48,500	40,700
Unrealized Holding Gain (Loss)	12,000	11,400
Mutual Funds
Cost	260,400	259,900
Fair Value	242,400	249,400
Unrealized Holding Gain (Loss)	$ (18,000)	$ (10,500)