Document and Entity Information [Abstract] Document and Entity Information Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Entity Public Float Entity Voluntary Filers Entity Current Reporting Status Entity Well-known Seasoned Issuer CONSOLIDATED BALANCE SHEETS ASSETS Current assets: Cash and cash equivalents Cash And Cash Equivalents-End Cash And Cash Equivalents-Beginning Cash and Cash Equivalents, at Carrying Value, Total Receivables Net Current Receivables Receivables Deferred income taxes-current Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current, Beginning Balance Deferred Tax Assets, Net, Current, Total Other current assets Total current assets Total current assets Property and equipment - net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment-net Property, Plant and Equipment, Net, Total Intangible Assets, Net (Excluding Goodwill) Intangible assets-net Intangible Assets, Net (Excluding Goodwill), Total Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Restricted cash Restricted cash Other assets Other Assets, Noncurrent, Total Total assets Total assets LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Accounts payable Accounts Payable, Current, Total Accounts payable Accrued liabilities: Taxes payable Taxes Payable, Current, Total Carrying value as of the balance sheet date of obligations incurred through that date and payable for transport and signaling network costs and utilities, together with other costs that directly support the switch locations. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued Circuit Cost Circuit cost Rent Payroll and related items Employee-related Liabilities, Current, Total Other Current installments of long-term debt Long-term Debt, Current Maturities, Total Total current liabilities Total current liabilities Other liabilities Other Liabilities, Noncurrent, Total Deferred income taxes-noncurrent Total liabilities Total liabilities Commitments And Contingencies 2009 Commitments and Contingencies Shareholders' equity: Preferred stock - par value of $.001; 50,000,000 authorized shares; no shares issued and outstanding at December 31, 2010 and December 31, 2009 Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred stock-par value of $.001; 50,000,000 authorized shares; no shares issued and outstanding at December 31, 2010 and December 31, 2009 Preferred Stock, Value, Issued, Total Common stock - par value of $.001; 150,000,000 authorized shares; 33,166,242 shares and 33,628,501 shares issued and outstanding at December 31, 2010 and December 31, 2009, respectively Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock-par value of $.001; 150,000,000 authorized shares; 33,166,242 shares and 33,628,501 shares issued and outstanding at December 31, 2010 and December 31, 2009, respectively Common Stock, Value, Issued, Total Additional paid-in capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Retained earnings Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Total shareholders' equity Balance Balance Total shareholders' equity Total liabilities and shareholders' equity Total liabilities and shareholders' equity Preferred stock, par value Preferred stock, authorized shares Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Common stock, par value Common stock, authorized shares Common stock, shares issued Common Stock, Shares, Issued, Total Common stock, shares outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance CONSOLIDATED STATEMENTS OF INCOME Revenue Revenues, Total Operating expense: The aggregate transport and signaling network costs, facility rents and utilities, together with other costs that directly support the switch locations incurred during the reporting period. Network and facilities expense (excluding depreciation and amortization) The aggregate operations expenses incurred during the reporting period. These expenses include payroll and benefits for both switch location personal and individuals located at the corporate office who are directly responsible for maintaining and expanding the switch network, switch repair and maintenance, property taxes, property insurance and supplies. Other Operating Expenses Net Operations Sales and marketing Selling and Marketing Expense, Total General and administrative General and Administrative Expense, Total Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Total Impairment of fixed assets Gain on disposal of fixed assets Gain on disposal of fixed assets Gain on disposal of fixed assets Gain (Loss) on Disposition of Assets, Total Total operating expense Total operating expense Income from operations Income from operations Other (income) expense: Interest expense, including debt discount of $52, $95 and $139, respectively Interest expense Interest expense Interest Expense, Total Interest income Interest income Other (income) expense Other (income) expense Other Nonoperating Income (Expense), Total Foreign exchange (gain) loss Foreign exchange gain Foreign exchange gain Foreign Currency Transaction Gain (Loss), before Tax, Total Total other income Total other (income) expense Total other (income) expense Income before income taxes Income before income taxes Provision for income taxes Income Tax Expense (Benefit), Total Net income Net income and comprehensive income Net income Net income Net income per share: Earnings Per Share, Basic Earnings Per Share, Basic, Total Basic Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Diluted Weighted average number of shares outstanding: Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Basic Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Diluted CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND OTHER COMPREHENSIVE INCOME Shares, Issued Balance, shares Balance, shares Retirement of common shares Original value of warrants issued reclassified to common stock upon exercise Exercise of warrants Warrants converted to shares of common stock, net of exercise price Exercise of warrants, shares Excess tax benefit associated with stock option exercise Excess tax benefit (deficiency) associated with share based payments Exercise of stock options Proceeds from the exercise of stock options Exercise of stock options, shares Non-cash share-based compensation Share based payment expense Share-based Compensation, Total Foreign exchange translation, net of taxes of $x Foreign currency translation Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Foreign exchange translation, net of tax Comprehensive income Total Comprehensive Income Comprehensive income Stock Option Plan Expense Stock option expense Payments made for repurchase of common stock Payments made for repurchase of common stock Repurchase of common stock The noncash expense that accounts for the value of nonvested shares distributed to employees as compensation. Activity Related To Nonvested Shares Value Activity related to non-vested shares Stock Repurchased During Period, Shares Repurchase of common stock, shares Repurchase of common stock, shares Activity Related To NonVested Shares Activity Related To NonVested Shares Activity related to non-vested shares, shares CONSOLIDATED STATEMENTS OF CASH FLOWS Cash Flows From Operating Activities: Adjustments to reconcile net cash flows from operating activities: Deferred income taxes Deferred Income Tax Expense (Benefit), Total Asset Impairment Charges Impairment of fixed assets Asset Impairment Charges, Total Amortization of debt discount Amortization Of Debt Discount Premium Interest expense, debt discount This item represents the total unrealized gain (loss) included in earnings for the period as a result of holding auction rate securities, categorized as trading. Increase Decrease In Fair Value Of Auction Rate Securities Changes in fair value of ARS Changes in fair value of ARS Changes in fair value of ARS This item represents the total unrealized gain (loss) included in earnings for the period as a result of a rights offering related to auction rate securities, categorized as trading. Increase Decrease In Fair Value Of Auction Rate Securities Rights Changes in fair value of ARS Rights Changes in fair value of ARS rights Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax deficiency (benefit) associated with share based payments Excess tax benefit associated with stock option exercise Changes in assets and liabilities: Increase (Decrease) in Receivables Receivables-net Receivables-net Increase (Decrease) in Receivables, Total The increase (decrease) during the reporting period in other current operating assets not separately disclosed in the statement of cash flows. Increase Decrease Other Current Assets Other current assets Other current assets The increase (decrease) during the reporting period in other noncurrent operating assets not separately disclosed in the statement of cash flows. Increase (Decrease) in Other Noncurrent Assets Other noncurrent assets Other noncurrent assets Increase (Decrease) in Accounts Payable Increase (Decrease) in Accounts Payable, Total Accounts payable Accrued liabilities Increase (Decrease) in Accrued Liabilities, Total The increase (decrease) during the reporting period in other noncurrent operating liabilities not separately disclosed in the statement of cash flows. Increase (Decrease) in Other Noncurrent Liabilities Noncurrent liabilities Net cash flows from operating activities Net cash flows from operating activities Cash Flows From Investing Activities: Purchase of equipment Purchase of equipment Payments to Acquire Property, Plant, and Equipment, Total Proceeds from sale of equipment Proceeds from Sale of Property, Plant, and Equipment, Total Increase in restricted cash Increase in restricted cash Increase (Decrease) in Restricted Cash, Total Payments to Acquire Businesses, Net of Cash Acquired Cash used in acquisitions, net of cash acquired Purchase of Tinet Payments to Acquire Businesses, Net of Cash Acquired, Total Purchase of auction rate securities Purchase of auction rate securities Proceeds from the redemption of ARS Proceeds from Sale and Maturity of Marketable Securities, Total Net cash flows from investing activities Net cash flows from investing activities Cash Flows From Financing Activities: Proceeds from the issuance of common shares associated with stock option exercise Proceeds from the exercise of stock options Restricted Shares Withheld to Cover Employee Taxes Paid Restricted Shares Withheld to Cover Employee Taxes Paid Restricted shares withheld to cover employee taxes paid Shares withheld for employee taxes paid Excess Tax Benefit From Share Based Compensation Financing Activities Excess tax (benefit) deficiency associated with share based payments Principal payments on long-term debt Principal payments on long-term debt Repayments of Long-term Debt, Total Net cash flows from financing activities Net cash flows from financing activities Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents, Total Net Increase In Cash And Cash Equivalents Net (Decrease) Increase In Cash And Cash Equivalents Supplemental Disclosure Of Cash Flow Information: Cash paid for interest Cash paid for taxes Supplemental Disclosure Of Noncash Flow Items: Investing Activity - Accrued purchases of equipment Investing Activity-Accrued purchases of equipment Description Of Business [Abstract] DESCRIPTION OF THE BUSINESS Nature Of Operations DESCRIPTION OF THE BUSINESS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies Text Block SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES PROPERTY AND EQUIPMENT Property Plant And Equipment Disclosure Text Block PROPERTY AND EQUIPMENT RECEIVABLES Loans Notes Trade And Other Receivables Disclosure Text Block RECEIVABLES DEBT Debt Disclosure Text Block DEBT Savings Plan 401(K) Abstract 401(k) SAVINGS PLAN Company sponsored employee 401K savings plan, employee participation and company contribution. Savings Plan 401 K Text Block 401(k) SAVINGS PLAN COMMON STOCK Company's authorized common stock, par value and certain rights defined. Common Stock [Text Block] COMMON STOCK Commitments And Contingencies Abstract COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure Text Block COMMITMENTS AND CONTINGENCIES Fair Value and Investments in Debt and Marketable Equity Securities And Certain Trading Assets Disclosures INVESTMENTS AND FAIR VALUE MEASUREMENTS Please use this definition: This item represents the complete disclosure regarding the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the Company is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risk is are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. It also represents the entire disclosure related to Investments in Certain Debt and Equity Securities (and certain other trading assets) which include all debt and equity securities (other than those equity securities accounted for under the equity or cost methods of accounting) with readily determinable fair values. Other trading assets include assets that are carried on the balance sheet at fair value and held for trading purposes. A debt security represents a creditor relationship with an enterprise that is in the form of a security. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities (and other trading assets). Fair Value And Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosures Text Block INVESTMENTS AND FAIR VALUE MEASUREMENTS INCOME TAXES Income Tax Disclosure Text Block INCOME TAXES STOCK OPTIONS AND NON-VESTED SHARES [Abstract] STOCK OPTIONS AND NON-VESTED SHARES Disclosure Of Share Based Compensation Arrangements By Share Based Payment Award Text Block STOCK OPTIONS AND NON-VESTED SHARES BUSINESS ACQUISITIONS Business Combination Disclosure [Text Block] BUSINESS ACQUISITIONS Segment Reporting SEGMENT AND GEOGRAPHIC INFORMATION Segment Reporting Disclosure Text Block SEGMENT AND GEOGRAPHIC INFORMATION QUARTERLY FINANCIAL DATA (UNAUDITED) Quarterly Financial Information [Text Block] QUARTERLY FINANCIAL DATA (UNAUDITED) Valuation and Qualifying Accounts [Abstract] Schedule II: Valuation and Qualifying Accounts Schedule Of Valuation And Qualifying Accounts Disclosure Text Block Schedule II: Valuation and Qualifying Accounts Statement, Scenario [Axis] Scenario, Unspecified [Domain] Common Shares [Member] Warrants [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) [Member]