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CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Statement [Abstract] |  |  |
Net sales | $ 103,846 us-gaap_SalesRevenueNet | $ 92,045 us-gaap_SalesRevenueNet | $ 83,196 us-gaap_SalesRevenueNet
Cost of goods sold | 71,598 us-gaap_CostOfGoodsSold | 64,471 us-gaap_CostOfGoodsSold | 58,869 us-gaap_CostOfGoodsSold
Gross profit | 32,248 us-gaap_GrossProfit | 27,574 us-gaap_GrossProfit | 24,327 us-gaap_GrossProfit
Selling, general and administrative expense | 18,641 us-gaap_SellingGeneralAndAdministrativeExpense | 18,246 us-gaap_SellingGeneralAndAdministrativeExpense | 17,747 us-gaap_SellingGeneralAndAdministrativeExpense
Write-down and loss on disposal of assets held for sale |  |  | 1,162 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Operating income | 13,607 us-gaap_OperatingIncomeLoss | 9,328 us-gaap_OperatingIncomeLoss | 5,418 us-gaap_OperatingIncomeLoss
Other non-operating income, net | 66 us-gaap_OtherNonoperatingIncomeExpense | 40 us-gaap_OtherNonoperatingIncomeExpense |
Interest expense |  | (127)us-gaap_InterestExpense | (479)us-gaap_InterestExpense
Income from continuing operations before income taxes | 13,673 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 9,241 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 4,939 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Provision for income taxes | 5,012 us-gaap_IncomeTaxExpenseBenefit | 3,226 us-gaap_IncomeTaxExpenseBenefit | 1,415 us-gaap_IncomeTaxExpenseBenefit
Income from continuing operations | 8,661 us-gaap_IncomeLossFromContinuingOperations | 6,015 us-gaap_IncomeLossFromContinuingOperations | 3,524 us-gaap_IncomeLossFromContinuingOperations
Discontinued operations, net of tax: |  |  |
Income from operations |  |  | 3,800 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Gain on disposal of discontinued operations |  |  | 27,637 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Net income | $ 8,661 us-gaap_NetIncomeLoss | $ 6,015 us-gaap_NetIncomeLoss | $ 34,961 us-gaap_NetIncomeLoss
Basic and diluted earnings per common share: |  |  |
Continuing operations | $ 0.70 us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare | $ 0.49 us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare | $ 0.28 us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
Discontinued operations: |  |  |
Income from operations |  |  | $ 0.31 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
Gain on disposal of discontinued operations |  |  | $ 2.23 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare
Net income | $ 0.70 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.49 us-gaap_EarningsPerShareBasicAndDiluted | $ 2.82 us-gaap_EarningsPerShareBasicAndDiluted
Cash dividends per share | $ 0.20 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.275 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.50 us-gaap_CommonStockDividendsPerShareCashPaid
Basic and diluted weighted average shares outstanding | 12,401 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 12,395 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 12,390 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted

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