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Consolidated Condensed Statement of Changes in Stockholders' Equity (USD $)
Total
Preferred
Common Stock
Additional Paid-in Capital
Retained Earnings
Treasury Stock
Balance at Jun. 30, 2013 $ 54,836,161 $ 317 $ 29,410 $ 31,813,239 $ 24,013,035 $ (1,019,840)
Balance (in shares) at Jun. 30, 2013   317,319 28,608,969      
Increase (Decrease) in Stockholders' Equity            
Stock-based compensation [1] 1,066,225     1,066,225    
Exercise of stock options 2,760,107   2,727 2,757,380    
Exercise of stock options (in shares)     2,726,911      
Exercise of stock warrants     905 (905)    
Exercise of stock warrants (in shares)     905,391      
Issuance of restricted stock     16 (16)    
Issuance of restricted stock (in shares)     16,476      
Forfeitures of restricted stock     (51) 51    
Forfeiture of restricted stock (in shares)     (51,099)      
Purchases of treasury stock (1,746,407)         (1,746,407)
Purchases of treasury stock (in shares) (144,462)   (144,462)      
Retirements of treasury stock     (945) (2,765,302)   2,766,247
Net income 1,063,568       1,063,568  
Common Stock cash dividends (3,205,135)       (3,205,135)  
Preferred Stock cash dividends (337,151)       (337,151)  
Windfall tax benefit 386,975     386,975    
Recovery of short swing profits 6,850     6,850    
Balance at Dec. 31, 2013 $ 54,831,193 $ 317 $ 32,062 $ 33,264,497 $ 21,534,317  
Balance (in shares) at Dec. 31, 2013   317,319 32,062,186      
[1] Includes $376,365 of stock compensation reflected in restructuring charges.