Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventories

	Finished Goods		Work-in- Process		Raw Materials		Total
	(In Thousands)
December 31, 2014:
Chemical products	$	19,354	$	—	$	2,147	$	21,501
Climate Control products		5,521		2,763		23,458		31,742
Industrial machinery and components		3,343		—		—		3,343
	$	28,218	$	2,763	$	25,605	$	56,586
December 31, 2013:
Chemical products	$	18,744	$	—	$	2,593	$	21,337
Climate Control products		7,552		2,838		21,278		31,668
Industrial machinery and components		2,867		—		—		2,867
	$	29,163	$	2,838	$	23,871	$	55,872