CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenues	$ 9,597,600	$ 7,848,400
Cost of revenues	5,680,300	4,726,800
Gross profit	3,917,300	3,121,600
Operating expenses:
General & administrative	1,695,200	1,700,900
Selling	1,415,400	1,045,300
Research & development	349,000	392,200
Impairment of intangible assets	212,700	0
Total operating expenses	3,672,300	3,138,400
Income (loss) from operations	245,000	(16,800)
Other income (expense):
Interest income	6,000	4,300
Other income, net	1,800	9,400
Interest expense	(33,900)	(4,200)
Total other income (expense), net	(26,100)	9,500
Income (loss) before income tax expense (benefit)	218,900	(7,300)
Income tax expense (benefit): Current	202,500	18,700
Income tax expense (benefit): Deferred	(149,200)	(34,700)
Total income tax expense (benefit)	53,300	(16,000)
Net income	$ 165,600	$ 8,700
Basic earnings per common share	$ 0.11	$ 0.01
Diluted earnings per common share	$ 0.11	$ 0.01
Weighted average common shares outstanding, basic	1,489,112	1,478,126
Weighted average common shares outstanding, assuming dilution	1,489,387	1,479,882