Other Expense

Other expense consists of the following:



	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2013		2012		2013

Administrative consolidation costs	$	1,231	$	1,566	$	1,504	$	3,170
Costs associated with legal arbitration and patent dispute	544		527		1,555		736
Costs associated with purchase of a distributor	—		—		704		—

Other expense	$	1,775	$	2,093	$	3,763	$	3,906

During 2012 and 2013, we restructured certain administrative functions. For the three and six months ended June 30, 2012 we incurred $1.2 million and $1.5 million, respectively, in related costs and for the three and six months ended June 30, 2013 we incurred $1.6 million and $3.2 million, respectively in related costs consisting principally of severance charges.

During 2012, we incurred legal costs related to a contractual dispute with a former distributor. The dispute was resolved in the second quarter of 2012. For the three and six months ended June 30, 2012, we incurred costs totaling $0.5 million and $1.6 million, respectively.

During the six months ended June 30, 2012, we incurred $0.7 million in costs associated with the purchase of the Company's former distributor in the Nordic region of Europe.

During the three and six months ended June 30, 2013, we incurred $0.5 million and $0.7 million in legal costs associated with a patent infringement claim as further described in Note 12.