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Note 13 - Stock Plans (Detail) - Recoginzed Compensation Expense, Restricted Stock, Net of Forfeitures (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Compensation expense (credit)	$ 67	$ 65
Restricted Stock [Member]
Compensation expense (credit)	$ 65	$ (49)

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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