4. Fair Value of Financial Instruments (Details 2) - USD ($)	Dec. 31, 2018	Jun. 30, 2018
Cost	$ 309,200	$ 313,500
Fair Value	307,800	314,700
Unrealized Holding Gain (Loss)	(1,400)	1,200
Equity Securities
Cost	48,700	45,700
Fair Value	67,100	67,800
Unrealized Holding Gain (Loss)	18,400	22,100
Mutual Funds
Cost	260,500	267,800
Fair Value	240,700	246,900
Unrealized Holding Gain (Loss)	$ (19,800)	$ (20,900)