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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2012
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Schedule of percentage of revenues generated from a single customer that exceeds 10% of the Company's consolidated revenue |
Customer |  | 2010 |  | 2011 |  | 2012 |
--- | --- | --- | --- | --- | --- | --- | ---
AT&T |  |  | 10 | % |  | 8 | % |  | 9 | %
Verizon |  |  | 15 | % |  | 15 | % |  | 15 | %
Schedule of percentage of accounts receivable, from customers that exceed 10% of the Company's consolidated accounts receivable, net of allowances |
Customer |  | 2011 |  | 2012 |
--- | --- | --- | --- | --- | ---
AT&T |  |  | 16 | % |  | 18 | %
Verizon |  |  | 12 | % |  | 13 | %
Schedule of assets and liabilities of the Company measured at fair value on a recurring basis |
|  | December 31, 2011 |
--- | --- | --- | ---
Description |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Total |
Certificates of deposit |  | $ | — |  | $ | 3,366 |  | $ | 3,366 |
Money market funds |  |  | 3,847 |  |  | — |  |  | 3,847 |
Total assets measured at fair value |  | $ | 3,847 |  | $ | 3,366 |  | $ | 7,213 |
Interest rate derivative (Note 8) |  | $ | — |  | $ | 11,337 |  | $ | 11,337 |
Total liabilities measured at fair value |  | $ | — |  | $ | 11,337 |  | $ | 11,337 |
|  | December 31, 2012 |
--- | --- | --- | ---
Description |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Total |
Certificates of deposit |  | $ | — |  | $ | 363 |  | $ | 363 |
Money market funds |  |  | 1,755 |  | $ | — |  |  | 1,755 |
Total assets measured at fair value |  | $ | 1,755 |  | $ | 363 |  | $ | 2,118 |
Interest rate derivative (Note 8) |  | $ | — |  | $ | 11,142 |  | $ | 11,142 |
Total liabilities measured at fair value |  | $ | — |  | $ | 11,142 |  | $ | 11,142 |
Schedule of reconciliation from basic to diluted weighted average common shares outstanding | The reconciliation from basic to diluted weighted average common shares outstanding is as follows (in thousands):
|  | For the Year Ended December 31, |
--- | --- | --- | ---
|  | 2010 |  | 2011 |  | 2012 |
Basic weighted-average common shares outstanding |  |  | 15,323 |  |  | 15,396 |  |  | 15,531 |
Stock options |  |  | 160 |  |  | 99 |  |  | 88 |
Diluted weighted-average common shares outstanding |  |  | 15,483 |  |  | 15,495 |  |  | 15,619 |
Schedule of anti-dilutive potential shares that were excluded from the computation of diluted weighted average shares outstanding | The following notes the number of potential common shares not included in the above calculation because the effects of such were anti-dilutive (in thousands of shares):
|  | For the Year Ended December 31, |
--- | --- | --- | ---
|  | 2010 |  | 2011 |  | 2012 |
Stock options |  |  | 126 |  |  | 274 |  |  | 367 |
Total |  |  | 126 |  |  | 274 |  |  | 367 |

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- Definition Tabular disclosure of the percentage that a specified receivable or amount at risk from a counterparty under a contractual arrangement is to a specified benchmark, such as total receivables, net revenues, pretax results. Risk is the materially adverse effects of loss attributable to (a) the failure to collect a significant receivable from a major customer or group of homogeneous accounts, or (b) a failure by a counterparty to perform under terms of a contractual arrangement. + References No definition available. + Details
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- Definition Tabular disclosure of the percentage that revenues in the period from one or more significant customers is to net revenues, as defined by the entity, such as total net revenues, product line revenues, segment revenues. The risk is the materially adverse effects of loss of a significant customer. + References No definition available. + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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