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Note 4 - Revenue Concentrations
6 Months Ended
Jun. 30, 2013
Risks and Uncertainties [Abstract]  
Concentration Risk Disclosure [Text Block]

4.            Revenue Concentrations


The Company fulfilled a contract with Time Warner Cable (“TW”) for the provision of wholesale network connections to TW customers in Maine and New Hampshire. Revenue received directly from TW represented approximately 12.1% and 3.9% of the Company’s consolidated revenue for the six months ended June 30, 2012 and 2013, respectively. Additionally, other unrelated telecommunications providers also pay the Company access revenue for terminating calls through the Company to TW customers representing 4.1% and less than 1.0% of the Company’s consolidated revenue for the six months ended June 30, 2012 and 2013, respectively. This contract expired as of December 31, 2012 and all connections were moved to TW’s facilities by January 31, 2013.


Revenues for interstate access services are based on reimbursement of costs and an allowed rate of return. Revenues of this nature are received from the National Exchange Carrier Association in the form of monthly settlements. Such revenues amounted to 9.3% and 11.1% of the Company’s total revenues for the six months ended June 30, 2012 and 2013, respectively.