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Note 8 - Acquisitions (Details Textual) - USD ($) | Feb. 01, 2017 | Jan. 20, 2017 | Feb. 27, 2015 | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | --- | ---
Redeemable Noncontrolling Interest, Equity, Carrying Amount |  |  |  | $ 1,098,589 | $ 3,086,090
Redeemable Noncontrolling Interest, Equity, Redemption Value |  |  |  | $ 1,200,000 |
Ting Virginia LLC [Member] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 20.00% |  | 70.00% |  |
Business Combination, Consideration Transferred | $ 2,000,000 |  | $ 3,500,000 |  |
Ting Virginia LLC [Member] | Exercisable by the Minority Shareholders [Member] | Exercisable on Fourth Anniversary of Business Combination [Member] |  |  |  |  |
Business Combination, Consideration to be Transfered Upon Exercise of Options Per Percentage Point | $ 120,000 |  |  |  |
Ting Virginia LLC [Member] | Subsequent Event [Member] | Exercisable by the Minority Shareholders [Member] |  |  |  |  |
Business Combination, Interest Subject to Call Option, Not Exercised in Period | 10.00% |  |  |  |
eNom Incorporated [Member] |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 77,831,677 |  |  |
Payments to Acquire Businesses, Gross |  | 83,500,000 |  |  |
Business Combination, Consideration Transferred, Estimated Price Adjusments |  | 5,700,000 |  |  |
Business Acquisition, Transaction Costs |  | 800,000 |  |  |
eNom Incorporated [Member] | General and Administrative Expense [Member] |  |  |  |  |
Business Acquisition, Transaction Costs |  | $ 400,000 |  |  |

X
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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