Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Accumulated other comprehensive loss, beginning balance at Dec. 31, 2011	$ (2,350)
Minimum pension/post retirement liability adjustment beginning balance at Dec. 31, 2011	(2,167)
Beginning Balance at Dec. 31, 2011	42,990	146	44,249	1,301	(2,350)	(356)
Transaction (loss) gain, beginning balance at Dec. 31, 2011	(183)
Beginning Balance, Shares at Dec. 31, 2011		14,654,000				(138,000)
Net income	10,850			10,850
Common stock dividends	(2,460)			(2,460)
Exercise of stock options and dividend reinvestment issuances	249		249
Exercise of stock options and dividend reinvestment issuances, Shares	41,000	41,000
Share based compensation earned	662		662
Share based compensation earned, Shares		9,000
Conversion of debt to equity	9,600	24	9,576
Conversion of debt to equity, Shares		2,400,000
Stock repurchase and retirement	(456)		(456)
Stock repurchase and retirement, Shares	(63,000)	(63,000)
Stock issued for acquisitions	521	1	520
Stock issued for acquisitions, Shares		55,000
Adjustment for minimum pension/post retirement liability, net of tax	(21)				(21)
Translation (loss) gain	59				59
Accumulated other comprehensive loss, activity	38
Accumulated other comprehensive loss, ending balance at Dec. 31, 2012	(2,312)
Minimum pension/post retirement liability adjustment, ending balance at Dec. 31, 2012	(2,188)
Ending Balance at Dec. 31, 2012	61,994	171	54,800	9,691	(2,312)	(356)
Transaction (loss) gain, ending balance at Dec. 31, 2012	(124)
Ending Balance, Shares at Dec. 31, 2012		17,096,000				(138,000)
Net income	6,557			6,557
Common stock dividends	(4,337)			(4,337)
Exercise of stock options and dividend reinvestment issuances	1,364	3	1,361
Exercise of stock options and dividend reinvestment issuances, Shares	316,000	316,000
Share based compensation earned	1,100		1,100
Share based compensation earned, Shares		3,000
Stock repurchase and retirement	(2,365)	(2)	(2,363)
Stock repurchase and retirement, Shares	(180,000)	(180,000)
Stock issued for acquisitions	104,753	85	104,668
Stock issued for acquisitions, Shares		8,490,000
Adjustment for minimum pension/post retirement liability, net of tax	1,362				1,362
Translation (loss) gain	(22)				(22)
Accumulated other comprehensive loss, activity	1,340
Accumulated other comprehensive loss, ending balance at Dec. 31, 2013	(972)
Minimum pension/post retirement liability adjustment, ending balance at Dec. 31, 2013	(826)
Ending Balance at Dec. 31, 2013	170,406	257	159,566	11,911	(972)	(356)
Transaction (loss) gain, ending balance at Dec. 31, 2013	(146)
Ending Balance, Shares at Dec. 31, 2013		25,725,000				(138,000)
Net income	13,077			13,077
Common stock dividends	(5,937)			(5,937)
Exercise of stock options and dividend reinvestment issuances	1,383	3	1,380
Exercise of stock options and dividend reinvestment issuances, Shares	239,000	247,000
Excess tax benefit from stock options exercised	923		923
Share based compensation earned	1,659		1,659
Share based compensation earned, Shares		7,000
Stock repurchase and retirement	(973)	(1)	(972)
Stock repurchase and retirement, Shares	(61,500)	(62,000)
Stock issued for acquisitions	6,335	5	6,330
Stock issued for acquisitions, Shares		488,000
Adjustment for minimum pension/post retirement liability, net of tax	(4,052)				(4,052)
Translation (loss) gain	(1,597)				(1,597)
Accumulated other comprehensive loss, activity	(5,649)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2014	(6,621)
Minimum pension/post retirement liability adjustment, ending balance at Dec. 31, 2014	(4,878)
Ending Balance at Dec. 31, 2014	181,224	264	168,886	19,051	(6,621)	(356)
Transaction (loss) gain, ending balance at Dec. 31, 2014	$ (1,743)
Ending Balance, Shares at Dec. 31, 2014		26,405,000				(138,000)