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Note 11 - Stockholders's Equity: (Tables)
 3 Months Ended
Mar. 31, 2013
Schedule of Stockholders Equity [Table Text Block]
   
 
Common stock
   
 
Additional
paid in
         
 
Accumulated
Other
Comprehensive
   
 
Total
stockholders'
 
   
Number
   
Amount
   
capital
   
Deficit
   
Income
   
equity
 
                                     
Balances, December 31, 2012
   
44,322,159
   
$
10,084,417
   
$
33,931,529
   
$
(17,509,843
)
 
$
44,104
   
$
26,550,207
 
                                                 
Exercise of stock options
   
56,857
     
65,009
     
(26,500
)
   
—
     
—
     
38,509
 
Repurchase and retirement of shares
   
(4,114,121
)
   
(822,887
)
   
(5,454,854
)
   
—
     
—
     
(6,277,741
)
Normal Course Issuer Bid
   
(143,073
)    
(28,615
)    
(231,260
)                    
(259,875
)
Cancellation of restricted stock
   
(25
)
   
—
     
—
     
—
     
—
     
—
 
Stock-based compensation
   
—
     
—
     
74,842
     
—
     
—
     
74,842
 
Net income for the period
   
—
     
—
     
—
     
76,579
     
—
     
76,579
 
Other comprehensive income
   
—
     
—
     
—
     
—
     
(185,785
)    
(185,785
)
                                                 
Balances, March 31, 2013
   
40,121,797
   
$
9,297,924
   
$
28,293,757
   
$
(17,433,264
)
 
$
(141,681
)  
$
20,016,736