v2.4.0.6
Note 9 - Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
           
Weighted Average
 
   
Number of
   
Exercise Price
 
   
Shares
   
Per Share
 
Balance at December 31, 2012
   
4,205,881
   
$
2.11
 
Options granted
   
293,500
   
$
0.75
 
Options cancelled
   
(171,947
)
 
$
1.80
 
Options expired
   
(1,088,689
)
 
$
3.27
 
Options exercised
   
--
   
$
--
 
Balance at March 31, 2013
   
3,238,745
   
$
1.74
 
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
           
Weighted Average
 
   
Restricted
   
Grant Date
 
   
Stock
   
Fair Value
 
   
Awards
   
(per share)
 
Balance at December 31, 2012
   
22,321
   
$
1.12
 
Shares granted
   
--
   
$
--
 
Shares forfeited
   
--
   
$
--
 
Shares restriction lapses
   
--
   
$
--
 
Balance at March 31, 2013
   
22,321
   
$
1.12
 
                 
Aggregate grant date fair value
 
$
25,000
         
                 
Vesting service period of shares granted
   
1 year
         
                 
Number of shares vested during the three months ended March 31, 2013
   
--
         
                 
Number of shares non-vested at March 31, 2013
   
22,321