Note 12 - Income Taxes (Detail) - Reconciliation of Income Tax Computed at the U.S. Federal Statutory Rate (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Expected tax benefit	$ (8,024)	$ (4,221)	$ (2,897)
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	(770)	(274)	(297)
Non-deductible items	274	668	636
Tax rate international	551	(533)	(14)
Other	(18)	278	88
Income tax benefit	$ (7,987)	$ (4,082)	$ (2,484)

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to total foreign income tax expense or benefit. The foreign income tax expense or benefit difference represents the income tax expense or benefit at applicable domestic statutory income tax rates applied to foreign earnings or loss for the period versus the foreign income tax expense or benefit calculated by applying the appropriate foreign tax rates.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to all other items not otherwise listed in the existing taxonomy.

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