6. Goodwill and Other Intangible Assets (Details) - USD ($)	6 Months Ended	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Cost	$ 2,362,100	$ 2,355,900
Accumulated Amortization	2,139,500	2,017,200
Net	$ 222,600	$ 338,700
Technology, trademarks [Member]
Useful Lives Minimum	5 years	5 years
Useful Lives Maximum	10 years	10 years
Cost	$ 662,800	$ 662,800
Accumulated Amortization	649,500	613,400
Net	$ 13,300	$ 49,400
Trade names [Member]
Useful Lives	6 years	6 years
Cost	$ 140,000	$ 140,000
Accumulated Amortization	112,800	101,100
Net	$ 27,200	$ 38,900
Websites [Member]
Useful Lives	5 years	5 years
Cost	$ 210,000	$ 210,000
Accumulated Amortization	203,000	182,000
Net	$ 7,000	$ 28,000
Customer relationships [Member]
Useful Lives Minimum	9 years	9 years
Useful Lives Maximum	10 years	10 years
Cost	$ 357,000	$ 357,000
Accumulated Amortization	301,400	294,800
Net	$ 55,600	$ 62,200
Sublicense agreements [Member]
Useful Lives	10 years	10 years
Cost	$ 294,000	$ 294,000
Accumulated Amortization	209,500	194,800
Net	$ 84,500	$ 99,200
Non-compete agreements [Member]
Useful Lives	5 years	5 years
Cost	$ 384,000	$ 384,000
Accumulated Amortization	375,000	348,000
Net	$ 9,000	$ 36,000
Intellectual property, research & development (IPR&D) [Member]
Useful Lives	3 years	3 years
Cost	$ 110,000	$ 110,000
Accumulated Amortization	110,000	110,000
Net	$ 0	$ 0
Other intangible assets [Member]
Useful Lives	5 years	5 years
Cost	$ 204,300	$ 198,100
Accumulated Amortization	178,300	173,100
Net	$ 26,000	$ 25,000