Statements of Operations (Unaudited) (USD $)	3 Months Ended
Mar. 28, 2015	Mar. 29, 2014
Income Statement [Abstract]
Product sales	$ 5,248,012	$ 5,952,080
Research and development under cooperative agreement	42,254us-gaap_SalesRevenueServicesGross	33,971us-gaap_SalesRevenueServicesGross
Total revenues	5,290,266us-gaap_Revenues	5,986,051us-gaap_Revenues
Cost of product sales	4,119,931us-gaap_CostOfGoodsSold	4,419,360us-gaap_CostOfGoodsSold
Cost of research and development under cooperative agreement	34,970us-gaap_CostOfRevenue	28,322us-gaap_CostOfRevenue
Gross Margin	1,135,365us-gaap_GrossProfit	1,538,369us-gaap_GrossProfit
Selling, general, and administrative expense	1,012,838	1,125,788
Income from operations	122,527us-gaap_OperatingIncomeLoss	412,581us-gaap_OperatingIncomeLoss
Interest expense, net		(962)us-gaap_OtherNonoperatingIncomeExpense
Income before taxes	122,527	411,619
Income tax provision	48,740us-gaap_DeferredIncomeTaxExpenseBenefit	164,000us-gaap_DeferredIncomeTaxExpenseBenefit
Net income	$ 73,787us-gaap_NetIncomeLoss	$ 247,619us-gaap_NetIncomeLoss
Net income per basic common share	$ 0.01us-gaap_EarningsPerShareBasic	$ 0.02us-gaap_EarningsPerShareBasic
Weighted average number of basic common shares outstanding	13,147,672	13,069,577
Net income per diluted common share	$ 0.01us-gaap_EarningsPerShareDiluted	$ 0.02us-gaap_EarningsPerShareDiluted
Weighted average number of diluted common shares outstanding	13,731,364	13,696,583

Total costs related to goods produced and sold during the reporting period.

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