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Note 2 - Summary of Significant Accounting Policies (Detail) - Summary of Stock-based Compensation (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Stock option expense $ 46 $ 73 $ 104 $ 96
Total stock-based compensation     104 309
Executive And Director [Member]
       
Stock-Based Compensation   53   107
Employee Incentive [Member]
       
Stock-Based Compensation       106
Total stock-based compensation $ 46 $ 126 $ 104 $ 309