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Note 1 - Summary of Significant Accounting Policies (Detail) - Property and Equipment, Depreciation Expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation Expense	$ 200	$ 217	$ 278

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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