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Consolidated Statements of Stockholders’ Equity - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Total
Balances at Dec. 31, 2012 $ 10,084,417 $ 33,931,529 $ (17,509,843) $ 44,104 $ 26,550,207
Balances (in Shares) at Dec. 31, 2012 11,081,340        
Exercise of stock options $ 2,626,352 (1,134,178)     $ 1,492,174
Exercise of stock options (in Shares) 890,034       890,034
Repurchase and retirement of shares (note 11) $ (851,502) (5,686,114)     $ (6,537,616)
Repurchase and retirement of shares (note 11) (in Shares) (1,064,299)       (1,064,299)
Cancellation of restricted stock (in Shares) (12)        
Income tax effect related to stock options exercised   1,090,171     $ 1,090,171
Stock-based compensation (note 12)   430,903     430,903
Net income     4,180,464   4,180,464
Other comprehensive income (loss)       (289,085) (289,085)
Balances at Dec. 31, 2013 $ 11,859,267 28,632,311 (13,329,379) (244,981) 26,917,218
Balances (in Shares) at Dec. 31, 2013 10,907,063        
Exercise of stock options $ 2,365,825 (886,900)     $ 1,478,925
Exercise of stock options (in Shares) 502,061       502,061
Repurchase and retirement of shares (note 11) $ (95,033) (1,086,825)     $ (1,181,858)
Repurchase and retirement of shares (note 11) (in Shares) (79,392)       (79,392)
Income tax effect related to stock options exercised   1,888,734     $ 1,888,734
Stock-based compensation (note 12)   542,738     542,738
Net income     6,374,096   6,374,096
Other comprehensive income (loss)       (377,460) (377,460)
Balances at Dec. 31, 2014 $ 14,130,059 29,090,058 (6,955,283) (622,441) 35,642,393
Balances (in Shares) at Dec. 31, 2014 11,329,732        
Exercise of stock options $ 1,784,112 (980,976)     $ 803,136
Exercise of stock options (in Shares) 517,998       517,998
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration   (1,306,981)     $ (1,306,981)
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (in Shares) (99,675)       (99,675)
Repurchase and retirement of shares (note 11) $ (1,383,538) (22,232,748)     $ (23,616,286)
Repurchase and retirement of shares (note 11) (in Shares) (1,062,456)       (1,062,456)
Income tax effect related to stock options exercised   3,431,017     $ 3,431,017
Stock-based compensation (note 12)   526,025     526,025
Net income     11,373,730   11,373,730
Accretion of redeemable non-controlling interest in Ting Virginia, LLC.     (36,598)   (36,598)
Other comprehensive income (loss)       (487,011) (487,011)
Balances at Dec. 31, 2015 $ 14,530,633 $ 8,526,395 $ 4,381,849 $ (1,109,452) $ 26,329,425
Balances (in Shares) at Dec. 31, 2015 10,685,599