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Note 5 - Restructuring and Other Charges (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Mar. 31, 2012	Sep. 30, 2012
Restructuring Charges	$ 359	$ 359
Termination Fees [Member]
Restructuring Charges	220
Relocation Fees [Member]
Restructuring Charges	$ 139

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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