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Note 2 - Acquisition (Detail) - Summary Of The Total Consideration Transferred In Acquisition (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 16, 2011	Aug. 01, 2011	Jan. 07, 2011
Cash	$ 750	$ 8,250	$ 1,740	$ 750
Stock Transferred [Member]
Consideration Transferred	400
Stock Options Transferred [Member]
Consideration Transferred	198
	$ 1,348

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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