Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net revenues	$ 10,188us-gaap_Revenues	$ 8,797us-gaap_Revenues
Cost of revenues	5,270us-gaap_CostOfRevenue	4,612us-gaap_CostOfRevenue
Gross margin	4,918us-gaap_GrossProfit	4,185us-gaap_GrossProfit
Operating expenses:
Selling expense	1,487us-gaap_SellingExpense	1,326us-gaap_SellingExpense
Engineering and product development expense	942us-gaap_ResearchAndDevelopmentExpense	923us-gaap_ResearchAndDevelopmentExpense
General and administrative expense	1,807us-gaap_GeneralAndAdministrativeExpense	1,532us-gaap_GeneralAndAdministrativeExpense
Total operating expenses	4,236us-gaap_OperatingExpenses	3,781us-gaap_OperatingExpenses
Operating income	682us-gaap_OperatingIncomeLoss	404us-gaap_OperatingIncomeLoss
Other income (expense)	(11)us-gaap_OtherNonoperatingIncomeExpense	7us-gaap_OtherNonoperatingIncomeExpense
Earnings before income tax expense	671	411
Income tax expense	233us-gaap_IncomeTaxExpenseBenefit	125us-gaap_IncomeTaxExpenseBenefit
Net earnings	$ 438us-gaap_NetIncomeLoss	$ 286us-gaap_NetIncomeLoss
Net earnings per common share - basic (in Dollars per share)	$ 0.04us-gaap_EarningsPerShareBasic	$ 0.03us-gaap_EarningsPerShareBasic
Weighted average common shares outstanding - basic (in Shares)	10,465,414	10,393,956
Net earnings per common share - diluted (in Dollars per share)	$ 0.04us-gaap_EarningsPerShareDiluted	$ 0.03us-gaap_EarningsPerShareDiluted
Weighted average common shares and common share equivalents outstanding - diluted (in Shares)	10,483,527	10,448,911

The aggregate cost of goods produced and sold and services rendered during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688