Concentrations	12 Months Ended
Concentrations	Dec. 31, 2011
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentrations	Concentrations: The Company purchases a substantial portion of its wireless infrastructure equipment and handset equipment from only a few major suppliers. Further, the Company generally relies on one or two key vendors in each of the following areas: network infrastructure equipment, billing services, payment services, customer care, handset logistics, roaming services and long distance services. Loss of any of these suppliers could adversely affect operations temporarily until a comparable substitute could be found. Local and long distance telephone and other companies provide certain communication services to the Company. Disruption of these services could adversely affect operations in the short term until an alternative telecommunication provider was found. Concentrations of credit risk with respect to trade accounts receivable are limited due to the diversity of the Company's indirect retailer base.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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+ Details