I am using libreoffice-4.0.2 on 9.1-RELEASE x64. I noticed that closing the GUI window does not kill the process related to it. After opening and closing a few windows of each application (writer, calc, draw), I see the following 
	
	
	
		
Should I be worried about this?
				
			 ps output:
		Code:
	
	pacija@kaa:~ % ps ax | grep soff
1682 v1  I      0:02.74 /usr/local/lib/libreoffice/program/soffice.bin --calc -
1697 v1  I      0:02.80 /usr/local/lib/libreoffice/program/soffice.bin --writer
1712 v1  I      0:01.77 /usr/local/lib/libreoffice/program/soffice.bin --writer
1725 v1  I      0:02.75 /usr/local/lib/libreoffice/program/soffice.bin --writer
1738 v1  I      0:01.66 /usr/local/lib/libreoffice/program/soffice.bin --calc -
1751 v1  I      0:02.72 /usr/local/lib/libreoffice/program/soffice.bin --draw -
1764 v1  I      0:02.78 /usr/local/lib/libreoffice/program/soffice.bin --writer
1777 v1  S      0:01.73 /usr/local/lib/libreoffice/program/soffice.bin --writer
1790 v1  S      0:02.65 /usr/local/lib/libreoffice/program/soffice.bin --calc -
1792  0  S+     0:00.00 grep soff
	Should I be worried about this?