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Note 13 - Stockholders' Equity Transactions (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Common Stock [Member]        
Balances (in shares) 10,594,733   10,685,599  
Balances $ 14,445,114   $ 14,530,633  
Exercise of stock options (in shares) 51,963   63,537  
Exercise of stock options $ 137,176   $ 185,913  
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (in shares) (14,545)   (18,267)  
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration    
Repurchase and retirement of shares (note 13) (in shares) (209,698)   (308,416)  
Repurchase and retirement of shares (note 13) $ (286,383)   $ (420,639)  
Income tax effect related to stock options exercised    
Stock-based compensation (note 14)    
Net income for the period    
Accretion of redeemable non-controlling interest in Ting Virginia, LLC.    
Other comprehensive income (loss)    
Balances (in shares) 10,422,453   10,422,453  
Balances $ 14,295,907   $ 14,295,907  
Exercise of stock options (in shares) 51,963   63,537  
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (in shares) (14,545)   (18,267)  
Repurchase and retirement of shares (note 13) (in shares) (209,698)   (308,416)  
Additional Paid-in Capital [Member]        
Balances $ 6,676,096   $ 8,526,395  
Exercise of stock options (97,438)   (126,617)  
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (205,548)   (242,233)  
Repurchase and retirement of shares (note 13) (4,713,595)   (6,759,618)  
Income tax effect related to stock options exercised 384,839   446,199  
Stock-based compensation (note 14) 190,187   390,415  
Net income for the period    
Accretion of redeemable non-controlling interest in Ting Virginia, LLC.    
Other comprehensive income (loss)    
Balances 2,234,541   2,234,541  
Retained Earnings [Member]        
Balances 8,807,789   4,381,849  
Exercise of stock options    
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration    
Repurchase and retirement of shares (note 13)    
Income tax effect related to stock options exercised    
Stock-based compensation (note 14)    
Net income for the period 4,070,786   8,509,024  
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. (12,348)   (24,646)  
Other comprehensive income (loss)    
Balances 12,866,227   12,866,227  
AOCI Attributable to Parent [Member]        
Balances (225,932)   (1,109,452)  
Exercise of stock options    
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration    
Repurchase and retirement of shares (note 13)    
Income tax effect related to stock options exercised    
Stock-based compensation (note 14)    
Net income for the period    
Accretion of redeemable non-controlling interest in Ting Virginia, LLC.    
Other comprehensive income (loss) 106,631   990,151  
Balances (119,301)   (119,301)  
Balances $ 29,703,067   $ 26,329,425  
Exercise of stock options (in shares) 51,963 112,656 63,537 187,653
Exercise of stock options $ 39,738   $ 59,296  
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (205,548)   (242,233)  
Repurchase and retirement of shares (note 13) (4,999,978)   (7,180,257)  
Income tax effect related to stock options exercised 384,839   446,199  
Stock-based compensation (note 14) 190,187   390,415  
Net income for the period 4,070,786 $ 2,284,995 8,509,024 $ 5,118,938
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. (12,348)   (24,646)  
Other comprehensive income (loss) 106,631 $ 333,909 990,151 $ (210,883)
Balances $ 29,277,374   $ 29,277,374  
Exercise of stock options (in shares) 51,963 112,656 63,537 187,653