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Note 14 - Stockholders' Equity Transactions (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Common Stock [Member] |  |
Balances (in shares) | 10,685,599 |
Balances | $ 14,530,633 |
Exercise of stock options (in shares) | 11,574 |
Exercise of stock options | $ 48,737 |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration (in shares) | (3,722) |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration |  |
Repurchase and retirement of shares (note 14) (in shares) | (98,718) |
Repurchase and retirement of shares (note 14) | $ (134,256) |
Income tax effect related to stock options exercised |  |
Stock-based compensation (note 15) |  |
Net income for the period |  |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. |  |
Other comprehensive income (loss) |  |
Balances (in shares) | 10,594,733 |
Balances | $ 14,445,114 |
Additional Paid-in Capital [Member] |  |
Balances | 8,526,395 |
Exercise of stock options | (29,179) |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration | (36,685) |
Repurchase and retirement of shares (note 14) | (2,046,023) |
Income tax effect related to stock options exercised | 61,360 |
Stock-based compensation (note 15) | $ 200,228 |
Net income for the period |  |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. |  |
Other comprehensive income (loss) |  |
Balances | $ 6,676,096 |
Retained Earnings [Member] |  |
Balances | $ 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 14) |  |
Income tax effect related to stock options exercised |  |
Stock-based compensation (note 15) |  |
Net income for the period | $ 4,438,238 |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. | $ (12,298) |
Other comprehensive income (loss) |  |
Balances | $ 8,807,789 |
AOCI Attributable to Parent [Member] |  |
Balances | $ (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 14) |  |
Income tax effect related to stock options exercised |  |
Stock-based compensation (note 15) |  |
Net income for the period |  |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. |  |
Other comprehensive income (loss) | $ 883,520 |
Balances | (225,932) |
Balances | $ 26,329,425 |
Exercise of stock options (in shares) | 11,574 | 74,997
Exercise of stock options | $ 19,558 |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration | (36,685) |
Repurchase and retirement of shares (note 14) | (2,180,279) |
Income tax effect related to stock options exercised | 61,360 |
Stock-based compensation (note 15) | 200,228 |
Net income for the period | 4,438,238 | $ 2,833,943
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. | (12,298) |
Other comprehensive income (loss) | 883,520 | $ (544,792)
Balances | $ 29,703,067 |

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