CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Net sales	$ 125,226	[1]	$ 99,029	[1]
Cost of sales	99,027		77,664
Gross profit	26,199		21,365
Selling, product development and administrative expenses	18,573		14,848
Operating income	7,626	[1]	6,517	[1]
Interest expense	212		78
Other expense, net	55		42
Income before income taxes	7,359		6,397
Income tax expense	3,643		1,905
Net income	$ 3,716		$ 4,492
Earnings per share:
Basic	$ 0.22		$ 0.27
Diluted	$ 0.22		$ 0.26
Weighted average number of common shares outstanding:
Basic	16,542		16,752
Diluted	16,852		17,036

[1] Industrial Filtration segment reports results for the period following the date of acquisition of February 20, 2014 through March 31, 2014.