Consolidated Statements of Income (USD $)	3 Months Ended	9 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Consolidated Statements of Income
Net sales	$ 6,690,705us-gaap_SalesRevenueNet	$ 6,185,642us-gaap_SalesRevenueNet	$ 21,210,219us-gaap_SalesRevenueNet	$ 20,387,856us-gaap_SalesRevenueNet
Cost of sales	4,498,818us-gaap_CostOfRevenue	3,929,523us-gaap_CostOfRevenue	13,987,149us-gaap_CostOfRevenue	12,873,138us-gaap_CostOfRevenue
Gross profit	2,191,887us-gaap_GrossProfit	2,256,119us-gaap_GrossProfit	7,223,070us-gaap_GrossProfit	7,514,718us-gaap_GrossProfit
Selling, general, and administrative expenses	2,217,397	2,245,595	6,848,746	6,940,427
Research and development expenses	236,461us-gaap_ResearchAndDevelopmentExpense	212,905us-gaap_ResearchAndDevelopmentExpense	687,961us-gaap_ResearchAndDevelopmentExpense	766,438us-gaap_ResearchAndDevelopmentExpense
Operating loss	(261,971)us-gaap_OperatingIncomeLoss	(202,381)us-gaap_OperatingIncomeLoss	(313,637)us-gaap_OperatingIncomeLoss	(192,147)us-gaap_OperatingIncomeLoss
Other income (expense):
Interest income	847us-gaap_InvestmentIncomeInterest	4us-gaap_InvestmentIncomeInterest	4,448us-gaap_InvestmentIncomeInterest	41us-gaap_InvestmentIncomeInterest
Interest expense	(87,127)us-gaap_InterestExpense	(59,038)us-gaap_InterestExpense	(215,156)us-gaap_InterestExpense	(174,996)us-gaap_InterestExpense
Other income, net	3,696us-gaap_OtherIncome	6,569us-gaap_OtherIncome	10,151us-gaap_OtherIncome	17,331us-gaap_OtherIncome
Net other expense	(82,584)us-gaap_OtherExpenses	(52,465)us-gaap_OtherExpenses	(200,557)us-gaap_OtherExpenses	(157,624)us-gaap_OtherExpenses
Loss before income taxes	(344,555)	(254,846)	(514,194)	(349,771)
Income tax benefit	136,542us-gaap_IncomeTaxExpenseBenefit	93,094us-gaap_IncomeTaxExpenseBenefit	213,562us-gaap_IncomeTaxExpenseBenefit	124,330us-gaap_IncomeTaxExpenseBenefit
Net loss	$ (208,013)us-gaap_NetIncomeLoss	$ (161,752)us-gaap_NetIncomeLoss	$ (300,632)us-gaap_NetIncomeLoss	$ (225,441)us-gaap_NetIncomeLoss
Basic and diluted net loss per common share	$ (0.08)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.06)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.12)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.09)us-gaap_EarningsPerShareBasicAndDiluted
Weighted-average common shares outstanding:
Basic	2,520,389	2,519,779	2,520,389	2,519,191
Diluted	2,520,389	2,519,779	2,520,389	2,519,191

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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