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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Balances at Dec. 31, 2008 $ 50,427,430 $ 174,353 $ 26,501,011 $ 24,009,389 $ (257,323)  
Balances (in shares) at Dec. 31, 2008   17,435,319        
Increase (Decrease) in Stockholders' Equity            
5% common stock dividend (385) 8,704 (9,089)      
5% common stock dividend (in shares)   870,379        
Options issued to outside Directors 150,000   150,000      
Issuance of restricted common stock   50 (50)      
Issuance of restricted common stock (in shares)   5,000        
Cancellation of restricted stock   (15) 15      
Cancellation of restricted stock (in shares)   (1,499)        
Exercise of stock options 9,600 139 9,461      
Exercise of stock options (in shares)   13,892        
Amortization of unearned compensation restricted stock awards 182,812   182,812      
Amortization of compensation cost of unvested stock options 179,918   179,918      
Foreign currency translation adjustments (133,716)         (133,716)
Net income (loss) 1,879,619     1,879,619    
Balances at Dec. 31, 2009 52,695,278 183,231 27,014,078 25,889,008 (257,323) (133,716)
Balances (in shares) at Dec. 31, 2009   18,323,091        
Increase (Decrease) in Stockholders' Equity            
5% common stock dividend (431) 9,142 (9,573)      
5% common stock dividend (in shares)   914,160        
Issuance of restricted common stock   50 (50)      
Issuance of restricted common stock (in shares)   5,000        
Amortization of unearned compensation restricted stock awards 86,230   86,230      
Amortization of compensation cost of unvested stock options 422,024   422,024      
Foreign currency translation adjustments 882,381         882,381
Net income (loss) (1,222,682)     (1,222,682)    
Balances at Dec. 31, 2010 52,862,800 192,423 27,512,709 24,666,326 (257,323) 748,665
Balances (in shares) at Dec. 31, 2010   19,242,251        
Increase (Decrease) in Stockholders' Equity            
Issuance of common stock awards 224,999 318 224,681      
Issuance of common stock awards (in shares)   31,851        
Issuance of restricted common stock   150 (150)      
Issuance of restricted common stock (in shares)   15,000        
Exercise of stock options 181,505 593 180,912      
Exercise of stock options (in shares)   59,334        
Amortization of unearned compensation restricted stock awards 28,603   28,603      
Amortization of compensation cost of unvested stock options 230,167   230,167      
Purchase of treasury shares (71)       (71)  
Foreign currency translation adjustments (641,538)         (641,538)
Net income (loss) 10,833,215     10,833,215    
Balances at Dec. 31, 2011 $ 63,719,680 $ 193,484 $ 28,176,922 $ 35,499,541 $ (257,394) $ 107,127
Balances (in shares) at Dec. 31, 2011   19,348,436