RESTRUCTURING (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Restructuring Cost and Reserve
Restructuring expense	$ 295,000	$ 697,000	$ 431,000	$ 1,407,000
Restructuring reserves	0	300,000	0	300,000
Employee severance
Restructuring Cost and Reserve
Restructuring expense	200,000		300,000
Asset write-off
Restructuring Cost and Reserve
Restructuring expense	100,000		100,000
Water Systems
Restructuring Cost and Reserve
Restructuring expense	300,000		400,000
Water Systems | Employee severance
Restructuring Cost and Reserve
Restructuring expense	200,000		300,000
Water Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	100,000		100,000
Fueling Systems
Restructuring Cost and Reserve
Restructuring expense	0		0
Fueling Systems | Employee severance
Restructuring Cost and Reserve
Restructuring expense	0		0
Fueling Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	0		0
Other
Restructuring Cost and Reserve
Restructuring expense	0		0
Other | Employee severance
Restructuring Cost and Reserve
Restructuring expense	0		0
Other | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	$ 0		$ 0