Note 8 - Business Combination (Details) - Acquisition Purchase Price Allocation (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013	Dec. 31, 2012
Note 8 - Business Combination (Details) - Acquisition Purchase Price Allocation [Line Items]
Intangible assets	$ 9,603	$ 559
Goodwill	17,118	2,066
	24,592
Hego [Member]
Note 8 - Business Combination (Details) - Acquisition Purchase Price Allocation [Line Items]
Net fair value of assets acquired	107
Intangible assets	9,930
Goodwill	$ 14,555

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The fair value of assets acquired in noncash investing or financing activities.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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