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Note 2 - Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
 
Three Months Ended
March 31,
 
2016
2015
Weighted average common shares outstanding - basic
    10,390,002       10,465,414  
Potentially dilutive securities:
               
Unvested shares of restricted stock and stock options
    14,242       18,113  
Weighted average common shares and common share equivalents outstanding - diluted
    10,404,244       10,483,527  
                 
Average number of potentially dilutive securities excluded from calculation
    15,231       -