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Note 10 - Restructuring (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Note 10 - Restructuring (Details) [Line Items]
Number of Positions Reduced	20
Subsequent Event [Member]
Note 10 - Restructuring (Details) [Line Items]
Number of Positions Reduced	20
Severance Costs	$ 0.6
Severance Cost, Remaining	0.3
Modifications of Equity Awards Outstanding Charges	$ 0.4

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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