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Note 10 - Commitments and Contingencies (Detail) (USD $)
 3 Months Ended 6 Months Ended 30 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Jun. 30, 2012
Contingent Payment, Project Annual Billings, Percentage [Member]
Jun. 30, 2012
Contingent Payment, Projected Annual Billings, Period in Months [Member]
Jun. 30, 2012
Not to Exceed Share Price [Member]
Jun. 30, 2012
Number of Days Stock Price Must Trade Above Ceiling to Trigger Additional Fee [Member]
Business Acquisition, Preacquisition Contingency, Description           2.5% 42 $2.00 twenty
Business Acquisition, Preacquisition Contingency, Amount $ 500,000   $ 500,000            
Payments for (Proceeds from) Previous Acquisition 54,000 100,000 100,000 200,000          
Business Acquisitions, Purchase Price Allocation, Subsequent Years, Remaining Adjustments         400,000        
Business Acquisition, Contingent Consideration, at Fair Value, Current $ 900,000   $ 900,000