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Note 13 - Stockholders' Equity | 6 Months Ended
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Jun. 30, 2016
Notes to Financial Statements |
Stockholders' Equity Note Disclosure [Text Block] | 13. Stockholders’ Equity: The following unaudited table summarizes stockholders' equity transactions for the three month period ended June 30, 2016:
|  | Common stock |  |  | Additional paid in |  |  | Retained earnings |  |  | Accumulated other comprehensive |  |  | Total stockholders' |
|  | Number |  |  | Amount |  |  | capital |  |  | (deficit) |  |  | income (loss) |  |  | equity |
Balances, March 31, 2016 |  |  | 10,594,733 |  |  | $ | 14,445,114 |  |  | $ | 6,676,096 |  |  | $ | 8,807,789 |  |  | $ | (225,932 | ) |  | $ | 29,703,067 |
Exercise of stock options |  |  | 51,963 |  |  |  | 137,176 |  |  |  | (97,438 | ) |  |  | - |  |  |  | - |  |  |  | 39,738 |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration |  |  | (14,545 | ) |  |  | - |  |  |  | (205,548 | ) |  |  | - |  |  |  | - |  |  |  | (205,548 | )
Repurchase and retirement of shares (note 13) |  |  | (209,698 | ) |  |  | (286,383 | ) |  |  | (4,713,595 | ) |  |  | - |  |  |  | - |  |  |  | (4,999,978 | )
Income tax effect related to stock options exercised |  |  | - |  |  |  | - |  |  |  | 384,839 |  |  |  | - |  |  |  | - |  |  |  | 384,839 |
Stock-based compensation (note 14) |  |  | - |  |  |  | - |  |  |  | 190,187 |  |  |  | - |  |  |  | - |  |  |  | 190,187 |
Net income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 4,070,786 |  |  |  | - |  |  |  | 4,070,786 |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (12,348 | ) |  |  | - |  |  |  | (12,348 | )
Other comprehensive income (loss) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 106,631 |  |  |  | 106,631 |
Balances, June 30, 2016 |  |  | 10,422,453 |  |  | $ | 14,295,907 |  |  | $ | 2,234,541 |  |  | $ | 12,866,227 |  |  | $ | (119,301 | ) |  | $ | 29,277,374 |
The following unaudited table summarizes stockholders' equity transactions for the six month period ended June 30, 2016:
|  |  | Common stock |  |  | Additional paid in |  |  | Retained earnings |  |  | Accumulated other comprehensive |  |  | Total stockholders' |
|  | Number |  |  | Amount |  |  | capital |  |  | (deficit) |  |  | income (loss) |  |  | equity |
Balances, December 31, 2015 |  |  | 10,685,599 |  |  | $ | 14,530,633 |  |  | $ | 8,526,395 |  |  | $ | 4,381,849 |  |  | $ | (1,109,452 | ) |  | $ | 26,329,425 |
Exercise of stock options |  |  | 63,537 |  |  |  | 185,913 |  |  |  | (126,617 | ) |  |  | - |  |  |  | - |  |  |  | 59,296 |
Shares deducted from exercise of stock options for payment of witholding taxes and exercise consideration |  |  | (18,267 | ) |  |  | - |  |  |  | (242,233 | ) |  |  | - |  |  |  | - |  |  |  | (242,233 | )
Repurchase and retirement of shares (note 13) |  |  | (308,416 | ) |  |  | (420,639 | ) |  |  | (6,759,618 | ) |  |  | - |  |  |  | - |  |  |  | (7,180,257 | )
Income tax effect related to stock options exercised |  |  | - |  |  |  | - |  |  |  | 446,199 |  |  |  | - |  |  |  | - |  |  |  | 446,199 |
Stock-based compensation (note 14) |  |  | - |  |  |  | - |  |  |  | 390,415 |  |  |  | - |  |  |  | - |  |  |  | 390,415 |
Net income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 8,509,024 |  |  |  | - |  |  |  | 8,509,024 |
Accretion of redeemable non-controlling interest in Ting Virginia, LLC. |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (24,646 | ) |  |  | - |  |  |  | (24,646 | )
Other comprehensive income (loss) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 990,151 |  |  |  | 990,151 |
Balances, June 30, 2016 |  |  | 10,422,453 |  |  | $ | 14,295,907 |  |  | $ | 2,234,541 |  |  | $ | 12,866,227 |  |  | $ | (119,301 | ) |  | $ | 29,277,374 |
On February 9, 2016, the Company announced that its Board of Directors had approved a stock buyback program to repurchase up to $40 million of its common stock in the open market. Purchases will be made exclusively through the facilities of the NASDAQ Capital Market. The stock buyback program commenced on February 10, 2016 and will terminate on or before February 9, 2017. The Company repurchased 209,698 and 308,416 shares under this program for the three and six months ended June 30, 2016 for a total of $5.0 million and $7.2 million, respectively. On February 11, 2015, the Company announced that its Board of Directors had approved a stock buyback program to repurchase up to $20 million of its common stock in the open market. Purchases were made exclusively through the facilities of the NASDAQ Capital Market. The stock buyback program commenced on February 16, 2015 and was terminated on February 9, 2016. The Company did not repurchase any shares under this program during the six months ended June 30, 2016. The Company repurchased 25,413 and 239,502 shares under this program during the three and six months ended June 30, 2015 for a total of $0.5 million and $4.5 million, respectively. On January 7, 2015, the Company announced that it successfully concluded the Tender Offer that was previously announced on December 8, 2014. Under the terms of the offer, for the six months ended June 30, 2015, the Company repurchased an aggregate of 193,907 shares of its common stock at a purchase price of $18.50 per share, for a total of $3.6 million, excluding transaction costs of approximately $70,000. All shares purchased in the Tender Offer received the same price and all shares repurchased were immediately retired.

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