Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Sales	$ 81,600us-gaap_SalesRevenueNet	$ 100,299us-gaap_SalesRevenueNet
Cost of sales	63,876us-gaap_CostOfGoodsAndServicesSold	78,595us-gaap_CostOfGoodsAndServicesSold
Gross profit	17,724us-gaap_GrossProfit	21,704us-gaap_GrossProfit
Operating expenses:
Salaries and commissions	7,238us-gaap_LaborAndRelatedExpense	8,123us-gaap_LaborAndRelatedExpense
Other operating expenses	6,048us-gaap_OtherCostAndExpenseOperating	6,492us-gaap_OtherCostAndExpenseOperating
Depreciation and amortization	712us-gaap_DepreciationAndAmortization	741us-gaap_DepreciationAndAmortization
Total operating expenses	13,998us-gaap_OperatingExpenses	15,356us-gaap_OperatingExpenses
Operating income	3,726us-gaap_OperatingIncomeLoss	6,348us-gaap_OperatingIncomeLoss
Interest expense	265us-gaap_InterestExpense	268us-gaap_InterestExpense
Income before income taxes	3,461	6,080
Income taxes	1,275us-gaap_IncomeTaxExpenseBenefit	2,335us-gaap_IncomeTaxExpenseBenefit
Net income	$ 2,186us-gaap_NetIncomeLoss	$ 3,745us-gaap_NetIncomeLoss
Earnings per share:
Basic	$ 0.13us-gaap_EarningsPerShareBasic	$ 0.21us-gaap_EarningsPerShareBasic
Diluted	$ 0.13us-gaap_EarningsPerShareDiluted	$ 0.21us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding:
Basic	17,296,978	17,850,911
Diluted	17,376,928	17,944,010
Dividends declared per share	$ 0.12	$ 0.11

Aggregate dividends declared during the period for each share of common stock outstanding.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770