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Note 9 - Acquisitions (Details Textual) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 27, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014
Ting Virginia LLC [Member] | Exercisable on Second Anniversary of Business Combination [Member] |  |  |  |  |
Interest Subject to Call Option Exercise | 20.00% |  |  |  |
Ting Virginia LLC [Member] | Exercisable on Fourth Anniversary of Business Combination [Member] | Exercisable by the Minority Shareholders [Member] |  |  |  |  |
Business Combination, Consideration to be Transfered Upon Exercise of Options Per Percentage Point | $ 120,000 |  |  |  |
Ting Virginia LLC [Member] | Derivatives Embedded in Business Combination Agreement [Member] |  |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | $ 3,000,000 |  |  |  |
Business Combination, Contingent Consideration Accrete Discount Rate | 5.00% |  |  |  |
Business Combination, Contingent Consideration Accrete Discount Rate Term | 4 years |  |  |  |
Ting Virginia LLC [Member] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 70.00% |  |  |  |
Business Combination, Consideration Transferred | $ 3,500,000 |  |  |  |
Business Combination Consideration Transferred Advanced in Escrow |  |  |  |  | $ 3,125,000
Payments to Acquire Businesses, Gross | $ 3,135,140 |  | $ 407,493 | $ 357,492 |
Business Combination, Customers Acquired, Number | 3,000 |  |  |  |
Interest Subject to Put and Call Option Exercise | 30.00% |  |  |  |
Business Combination, Put Option Excercisable, Term | 7 days |  |  |  |
Business Combination, Interest Subject to Put Option Exercise | 10.00% |  |  |  |
Business Combination, Consideration to be Transfered Upon Exercise of Options Per Percentage Point | $ 100,000 |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount |  | $ 3,048,896 |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  | 12,298 | $ 0 |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount |  | $ 3,048,896 |  | $ 3,036,598 |

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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, advanced in escrow. + References No definition available. + Details
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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=65885119&loc=d3e1392-128463 + Details
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