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Note 13 - Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2016
Notes Tables |
Schedule of Stockholders Equity [Table Text Block] |
|  | 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 |
|  |  | 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 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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