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Stock Options (Tables)
3 Months Ended
Mar. 31, 2012
Notes to Financial Statements  
Stock options outstanding and exercisable
   
Options Outstanding
Options Exercisable  
Exercise Price   Number   Weighted Average Remaining Contractual Life (in Years)     Number  
$0.01   105,000   9.80     0  
$1.70   19,000   9.15     0  
$1.87   3,000   9.15     0  
$2.10   79,250   8.36     45,500  
$2.30   15,000   9.72     15,000  
$2.31   16,500   8.36     14,625  
  Total   237,750   9.16     75,125