4. Fair Value of Financial Instruments (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Cash and cash equivalents	$ 493,700	$ 927,300	$ 769,300
Available for sale securities	415,400	908,400
Total	909,100	1,835,700
Liabilities:
Contingent consideration	500,000	70,600
Level 1
Cash and cash equivalents	493,700	927,300
Available for sale securities	415,400	908,400
Total	909,100	1,835,700
Liabilities:
Contingent consideration	0	0
Level 2
Cash and cash equivalents	0	0
Available for sale securities	0	0
Total	0	0
Liabilities:
Contingent consideration	0	0
Level 3
Cash and cash equivalents	0	0
Available for sale securities	0	0
Total	0	0
Liabilities:
Contingent consideration	$ 500,000	$ 70,600