Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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Restructuring Restructuring Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Restructuring Reserve [Roll Forward]
Beginning balance, January 1, 2013			$ 641
Restructuring charge (benefit)	391	(46)	822	14
Cash payments			621
Ending balance, June 30, 2013	842		842
Current portion of accrued restructuring	533		533		275
Long-term portion of accrued restructuring	309		309
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Beginning balance, January 1, 2013			517
Restructuring charge (benefit)			0
Cash payments			61
Ending balance, June 30, 2013	456		456
Current portion of accrued restructuring	147		147
Long-term portion of accrued restructuring	309		309
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning balance, January 1, 2013			124
Restructuring charge (benefit)			822
Cash payments			560
Ending balance, June 30, 2013	386		386
Current portion of accrued restructuring	386		386
Long-term portion of accrued restructuring	$ 0		$ 0