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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table | Pay Versus Performance Table The SEC has adopted rules (as required by the Dodd-Frank Act) requiring disclosure of the relationship between the executive compensation actually paid and the financial performance of the Company. The below table outlines, in addition to the amounts listed in the Company’s Summary Compensation Table, the total Compensation Actually Paid (“CAP”) for the principal executive officer, which is the Company’s Chief Executive Officer (“CEO”), and the average of the total compensation actually paid for the Non-CEO Named Executive Officers (“NEOs”), which include the Company’s Executive Chairman, Chief Financial Officer, Senior Vice President and General Counsel, and Senior Vice President, Corporate Development, for the year as indicated. Additionally, the table includes the Company-Selected Measure of Adjusted EBITDA, a non-GAAP financial measure, as defined and described in more detail below. For information concerning the Company’s compensation philosophy and how the Company aligns executive compensation with financial performance, refer to the Compensation Discussion and Analysis section beginning on page 26.
​ | ​ | ​ | Summary Compensation Table Total for CEO(b) | ​ | ​ | Compensation Actually Paid to CEO(c) | ​ | ​ | Average Summary Compensation Table Total for Non-CEO NEOs(c) | ​ | ​ | Average Compensation Actually Paid to Non-CEO NEOs(c) | ​ | ​ | Value of Initial Fixed $100 Investment Based On: | ​ | ​ | Net Income (Loss) (in $000’s) | ​ | ​ | Company- Selected Measure: Adjusted EBITDA (in $000’s) | ​
Year(a) | ​ | ​ | Total Shareholder Return ($)(d) | ​ | ​ | Peer Group Total Shareholder Return ($)(e) | ​
2025 | ​ | ​ | ​ | ​ | 3,035,458 | ​ | ​ | ​ | ​ | ​ | 2,261,237 | ​ | ​ | ​ | ​ | ​ | 1,495,743 | ​ | ​ | ​ | ​ | ​ | 1,238,280 | ​ | ​ | ​ | ​ | ​ | 63.69 | ​ | ​ | ​ | ​ | ​ | 118.08 | ​ | ​ | ​ | ​ | ​ | (23,522) | ​ | ​ | ​ | ​ | ​ | 190,044 | ​ | ​
2024 | ​ | ​ | ​ | ​ | 2,204,737 | ​ | ​ | ​ | ​ | ​ | 73,608 | ​ | ​ | ​ | ​ | ​ | 1,163,579 | ​ | ​ | ​ | ​ | ​ | 87,895 | ​ | ​ | ​ | ​ | ​ | 33.82 | ​ | ​ | ​ | ​ | ​ | 78.87 | ​ | ​ | ​ | ​ | ​ | (31,852) | ​ | ​ | ​ | ​ | ​ | 184,084 | ​ | ​
2023 | ​ | ​ | ​ | ​ | 3,581,890 | ​ | ​ | ​ | ​ | ​ | 2,736,645 | ​ | ​ | ​ | ​ | ​ | 1,319,997 | ​ | ​ | ​ | ​ | ​ | 956,198 | ​ | ​ | ​ | ​ | ​ | 75.35 | ​ | ​ | ​ | ​ | ​ | 65.02 | ​ | ​ | ​ | ​ | ​ | (18,754) | ​ | ​ | ​ | ​ | ​ | 189,451 | ​ | ​
2022 | ​ | ​ | ​ | ​ | 3,231,728 | ​ | ​ | ​ | ​ | ​ | 3,169,382 | ​ | ​ | ​ | ​ | ​ | 1,322,398 | ​ | ​ | ​ | ​ | ​ | 1,365,456 | ​ | ​ | ​ | ​ | ​ | 85.56 | ​ | ​ | ​ | ​ | ​ | 68.88 | ​ | ​ | ​ | ​ | ​ | (7,583) | ​ | ​ | ​ | ​ | ​ | 172,688 | ​ | ​
2021 | ​ | ​ | ​ | ​ | 3,379,850 | ​ | ​ | ​ | ​ | ​ | 2,516,463 | ​ | ​ | ​ | ​ | ​ | 1,097,723 | ​ | ​ | ​ | ​ | ​ | 855,318 | ​ | ​ | ​ | ​ | ​ | 74.18 | ​ | ​ | ​ | ​ | ​ | 111.88 | ​ | ​ | ​ | ​ | ​ | (20,809) | ​ | ​ | ​ | ​ | ​ | 135,628 | ​ | ​
​ (a) Each year is from January 1−December 31 of the indicated year. ​ (b) The dollar amounts reported for the fiscal year 2025 are the amounts of total compensation reported for our CEO, Mr. Martin, in the Summary Compensation Table (“SCT”). The dollar amounts reported for fiscal years 2023, 2022, and 2021 are the amounts of total compensation reported for our CEO, Mr. Prior, in the SCT. ​ (c) The dollar amounts do not reflect the actual amounts of compensation paid to or received by our CEO or other NEOs during the applicable year but rather are “Compensation Actually Paid” as such term is defined under applicable SEC rules. The amounts include the year-end value of equity awards granted during the reported year and the change in the value of equity awards, granted in previous years that were unvested at the end of the prior year, measured through the date the awards vested or were forfeited, or through the end of the reported fiscal year. See below for calculation of CAP to the CEO and ​ Non-CEO NEOs. For 2024, our Non-CEO NEOs were Messrs. Doglioli, Leon and Prior and, Ms. Mabey. For 2023 and 2022, our Non-CEO NEOs were Messrs. Benincasa, Leon and Martin and, Ms. Mabey. For 2021, our Non-CEO NEOs were Messrs. Benincasa, Kreisher and Martin, and Ms. Mabey. (d) Calculated as cumulative total shareholder return as if $100 was invested in Company common stock on December 31, 2020 measured through the end of the applicable year. ​ (e) We used our peer group for purposes of Item 201(e) of Regulation S-K to calculate peer group total shareholder return, the Nasdaq Small Cap Telecommunications Services Index. Calculated as cumulative total shareholder return as if $100 was invested in the Nasdaq Small Cap Telecommunications Services Index on December 31, 2020 measured through the end of the applicable year. ​
Year | ​ | ​ | Executive | ​ | ​ | Summary Compensation Table Total | ​ | ​ | Less: Stock Awards | ​ | ​ | Add: Year End Equity Value of awards granted during the reported year | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Prior Equity Awards | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Vested Equity Awards | ​ | ​ | Compensation Actually Paid | ​
2025 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,035,458 | ​ | ​ | ​ | ​ | ​ | (1,930,777) | ​ | ​ | ​ | ​ | ​ | 2,114,681 | ​ | ​ | ​ | ​ | ​ | (1,030,252) | ​ | ​ | ​ | ​ | ​ | 72,127 | ​ | ​ | ​ | ​ | ​ | 2,261,237 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,495,743 | ​ | ​ | ​ | ​ | ​ | (922,474) | ​ | ​ | ​ | ​ | ​ | 1,010,339 | ​ | ​ | ​ | ​ | ​ | (437,551) | ​ | ​ | ​ | ​ | ​ | 92,223 | ​ | ​ | ​ | ​ | ​ | 1,238,280 | ​ | ​
2024 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 2,204,737 | ​ | ​ | ​ | ​ | ​ | (1,461,322) | ​ | ​ | ​ | ​ | ​ | 608,377 | ​ | ​ | ​ | ​ | ​ | (1,175,482) | ​ | ​ | ​ | ​ | ​ | (102,703) | ​ | ​ | ​ | ​ | ​ | 73,608 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,163,579 | ​ | ​ | ​ | ​ | ​ | (689,509) | ​ | ​ | ​ | ​ | ​ | 189,752 | ​ | ​ | ​ | ​ | ​ | (459,995) | ​ | ​ | ​ | ​ | ​ | (115,932) | ​ | ​ | ​ | ​ | ​ | 87,895 | ​ | ​
2023 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,581,890 | ​ | ​ | ​ | ​ | ​ | (2,126,000) | ​ | ​ | ​ | ​ | ​ | 1,995,000 | ​ | ​ | ​ | ​ | ​ | (591,262) | ​ | ​ | ​ | ​ | ​ | (122,983) | ​ | ​ | ​ | ​ | ​ | 2,736,645 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,319,997 | ​ | ​ | ​ | ​ | ​ | (724,966) | ​ | ​ | ​ | ​ | ​ | 680,295 | ​ | ​ | ​ | ​ | ​ | (172,072) | ​ | ​ | ​ | ​ | ​ | (147,057) | ​ | ​ | ​ | ​ | ​ | 956,198 | ​ | ​
2022 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,231,728 | ​ | ​ | ​ | ​ | ​ | (1,852,208) | ​ | ​ | ​ | ​ | ​ | 2,254,395 | ​ | ​ | ​ | ​ | ​ | (338,571) | ​ | ​ | ​ | ​ | ​ | (125,963) | ​ | ​ | ​ | ​ | ​ | 3,169,382 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,322,398 | ​ | ​ | ​ | ​ | ​ | (755,563) | ​ | ​ | ​ | ​ | ​ | 919,625 | ​ | ​ | ​ | ​ | ​ | (93,459) | ​ | ​ | ​ | ​ | ​ | (27,545) | ​ | ​ | ​ | ​ | ​ | 1,365,456 | ​ | ​
2021 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,379,850 | ​ | ​ | ​ | ​ | ​ | (2,132,370) | ​ | ​ | ​ | ​ | ​ | 1,605,470 | ​ | ​ | ​ | ​ | ​ | (581,545) | ​ | ​ | ​ | ​ | ​ | 245,058 | ​ | ​ | ​ | ​ | ​ | 2,516,463 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,097,723 | ​ | ​ | ​ | ​ | ​ | (597,951) | ​ | ​ | ​ | ​ | ​ | 451,611 | ​ | ​ | ​ | ​ | ​ | (154,914) | ​ | ​ | ​ | ​ | ​ | 58,849 | ​ | ​ | ​ | ​ | ​ | 855,318 | ​ | ​
(1) The dollar amounts shown are average amounts for all NEO’s other than the CEO. The Board currently considers Adjusted EBITDA, a non-GAAP financial measure, to be the most important financial performance measure used to link CAP of the CEO and Non-CEO NEOs to Company performance. The Company defines Adjusted EBITDA as operating income (loss) before depreciation and amortization expense, transaction-related charges, one-time impairment or special charges, non-cash stock-based compensation and the gain (loss) on disposition of assets. The Company regularly reports on this metric to investors in its quarterly earnings releases and believes that the inclusion of these non-GAAP financial measures (and the associated reconciliations to the nearest GAAP financial measures) helps investors gain a meaningful understanding of the Company’s core operating results and enhances the usefulness of comparing such performance with prior periods. Accordingly, the Board considers Adjusted EBITDA as the best measure to track Company performance, as well as to align executive compensation with such performance. |  |  |  |
Company Selected Measure Name | Adjusted EBITDA |  |  |  |
Named Executive Officers, Footnote | (b) The dollar amounts reported for the fiscal year 2025 are the amounts of total compensation reported for our CEO, Mr. Martin, in the Summary Compensation Table (“SCT”). The dollar amounts reported for fiscal years 2023, 2022, and 2021 are the amounts of total compensation reported for our CEO, Mr. Prior, in the SCT. ​ (c) The dollar amounts do not reflect the actual amounts of compensation paid to or received by our CEO or other NEOs during the applicable year but rather are “Compensation Actually Paid” as such term is defined under applicable SEC rules. The amounts include the year-end value of equity awards granted during the reported year and the change in the value of equity awards, granted in previous years that were unvested at the end of the prior year, measured through the date the awards vested or were forfeited, or through the end of the reported fiscal year. See below for calculation of CAP to the CEO and ​ Non-CEO NEOs. For 2024, our Non-CEO NEOs were Messrs. Doglioli, Leon and Prior and, Ms. Mabey. For 2023 and 2022, our Non-CEO NEOs were Messrs. Benincasa, Leon and Martin and, Ms. Mabey. For 2021, our Non-CEO NEOs were Messrs. Benincasa, Kreisher and Martin, and Ms. Mabey. |  |  |  |
Peer Group Issuers, Footnote | (e) We used our peer group for purposes of Item 201(e) of Regulation S-K to calculate peer group total shareholder return, the Nasdaq Small Cap Telecommunications Services Index. Calculated as cumulative total shareholder return as if $100 was invested in the Nasdaq Small Cap Telecommunications Services Index on December 31, 2020 measured through the end of the applicable year. |  |  |  |
PEO Total Compensation Amount | $ 3,035,458 | $ 2,204,737 | $ 3,581,890 | $ 3,231,728 | $ 3,379,850
PEO Actually Paid Compensation Amount | $ 2,261,237 | 73,608 | 2,736,645 | 3,169,382 | 2,516,463
Adjustment To PEO Compensation, Footnote |
Year | ​ | ​ | Executive | ​ | ​ | Summary Compensation Table Total | ​ | ​ | Less: Stock Awards | ​ | ​ | Add: Year End Equity Value of awards granted during the reported year | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Prior Equity Awards | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Vested Equity Awards | ​ | ​ | Compensation Actually Paid | ​
2025 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,035,458 | ​ | ​ | ​ | ​ | ​ | (1,930,777) | ​ | ​ | ​ | ​ | ​ | 2,114,681 | ​ | ​ | ​ | ​ | ​ | (1,030,252) | ​ | ​ | ​ | ​ | ​ | 72,127 | ​ | ​ | ​ | ​ | ​ | 2,261,237 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,495,743 | ​ | ​ | ​ | ​ | ​ | (922,474) | ​ | ​ | ​ | ​ | ​ | 1,010,339 | ​ | ​ | ​ | ​ | ​ | (437,551) | ​ | ​ | ​ | ​ | ​ | 92,223 | ​ | ​ | ​ | ​ | ​ | 1,238,280 | ​ | ​
2024 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 2,204,737 | ​ | ​ | ​ | ​ | ​ | (1,461,322) | ​ | ​ | ​ | ​ | ​ | 608,377 | ​ | ​ | ​ | ​ | ​ | (1,175,482) | ​ | ​ | ​ | ​ | ​ | (102,703) | ​ | ​ | ​ | ​ | ​ | 73,608 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,163,579 | ​ | ​ | ​ | ​ | ​ | (689,509) | ​ | ​ | ​ | ​ | ​ | 189,752 | ​ | ​ | ​ | ​ | ​ | (459,995) | ​ | ​ | ​ | ​ | ​ | (115,932) | ​ | ​ | ​ | ​ | ​ | 87,895 | ​ | ​
2023 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,581,890 | ​ | ​ | ​ | ​ | ​ | (2,126,000) | ​ | ​ | ​ | ​ | ​ | 1,995,000 | ​ | ​ | ​ | ​ | ​ | (591,262) | ​ | ​ | ​ | ​ | ​ | (122,983) | ​ | ​ | ​ | ​ | ​ | 2,736,645 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,319,997 | ​ | ​ | ​ | ​ | ​ | (724,966) | ​ | ​ | ​ | ​ | ​ | 680,295 | ​ | ​ | ​ | ​ | ​ | (172,072) | ​ | ​ | ​ | ​ | ​ | (147,057) | ​ | ​ | ​ | ​ | ​ | 956,198 | ​ | ​
2022 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,231,728 | ​ | ​ | ​ | ​ | ​ | (1,852,208) | ​ | ​ | ​ | ​ | ​ | 2,254,395 | ​ | ​ | ​ | ​ | ​ | (338,571) | ​ | ​ | ​ | ​ | ​ | (125,963) | ​ | ​ | ​ | ​ | ​ | 3,169,382 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,322,398 | ​ | ​ | ​ | ​ | ​ | (755,563) | ​ | ​ | ​ | ​ | ​ | 919,625 | ​ | ​ | ​ | ​ | ​ | (93,459) | ​ | ​ | ​ | ​ | ​ | (27,545) | ​ | ​ | ​ | ​ | ​ | 1,365,456 | ​ | ​
2021 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,379,850 | ​ | ​ | ​ | ​ | ​ | (2,132,370) | ​ | ​ | ​ | ​ | ​ | 1,605,470 | ​ | ​ | ​ | ​ | ​ | (581,545) | ​ | ​ | ​ | ​ | ​ | 245,058 | ​ | ​ | ​ | ​ | ​ | 2,516,463 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,097,723 | ​ | ​ | ​ | ​ | ​ | (597,951) | ​ | ​ | ​ | ​ | ​ | 451,611 | ​ | ​ | ​ | ​ | ​ | (154,914) | ​ | ​ | ​ | ​ | ​ | 58,849 | ​ | ​ | ​ | ​ | ​ | 855,318 | ​ | ​
Non-PEO NEO Average Total Compensation Amount | $ 1,495,743 | 1,163,579 | 1,319,997 | 1,322,398 | 1,097,723
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,238,280 | 87,895 | 956,198 | 1,365,456 | 855,318
Adjustment to Non-PEO NEO Compensation Footnote |
Year | ​ | ​ | Executive | ​ | ​ | Summary Compensation Table Total | ​ | ​ | Less: Stock Awards | ​ | ​ | Add: Year End Equity Value of awards granted during the reported year | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Prior Equity Awards | ​ | ​ | Change (from last day of prior year to last day of reported year) in Value of Vested Equity Awards | ​ | ​ | Compensation Actually Paid | ​
2025 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,035,458 | ​ | ​ | ​ | ​ | ​ | (1,930,777) | ​ | ​ | ​ | ​ | ​ | 2,114,681 | ​ | ​ | ​ | ​ | ​ | (1,030,252) | ​ | ​ | ​ | ​ | ​ | 72,127 | ​ | ​ | ​ | ​ | ​ | 2,261,237 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,495,743 | ​ | ​ | ​ | ​ | ​ | (922,474) | ​ | ​ | ​ | ​ | ​ | 1,010,339 | ​ | ​ | ​ | ​ | ​ | (437,551) | ​ | ​ | ​ | ​ | ​ | 92,223 | ​ | ​ | ​ | ​ | ​ | 1,238,280 | ​ | ​
2024 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 2,204,737 | ​ | ​ | ​ | ​ | ​ | (1,461,322) | ​ | ​ | ​ | ​ | ​ | 608,377 | ​ | ​ | ​ | ​ | ​ | (1,175,482) | ​ | ​ | ​ | ​ | ​ | (102,703) | ​ | ​ | ​ | ​ | ​ | 73,608 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,163,579 | ​ | ​ | ​ | ​ | ​ | (689,509) | ​ | ​ | ​ | ​ | ​ | 189,752 | ​ | ​ | ​ | ​ | ​ | (459,995) | ​ | ​ | ​ | ​ | ​ | (115,932) | ​ | ​ | ​ | ​ | ​ | 87,895 | ​ | ​
2023 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,581,890 | ​ | ​ | ​ | ​ | ​ | (2,126,000) | ​ | ​ | ​ | ​ | ​ | 1,995,000 | ​ | ​ | ​ | ​ | ​ | (591,262) | ​ | ​ | ​ | ​ | ​ | (122,983) | ​ | ​ | ​ | ​ | ​ | 2,736,645 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,319,997 | ​ | ​ | ​ | ​ | ​ | (724,966) | ​ | ​ | ​ | ​ | ​ | 680,295 | ​ | ​ | ​ | ​ | ​ | (172,072) | ​ | ​ | ​ | ​ | ​ | (147,057) | ​ | ​ | ​ | ​ | ​ | 956,198 | ​ | ​
2022 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,231,728 | ​ | ​ | ​ | ​ | ​ | (1,852,208) | ​ | ​ | ​ | ​ | ​ | 2,254,395 | ​ | ​ | ​ | ​ | ​ | (338,571) | ​ | ​ | ​ | ​ | ​ | (125,963) | ​ | ​ | ​ | ​ | ​ | 3,169,382 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,322,398 | ​ | ​ | ​ | ​ | ​ | (755,563) | ​ | ​ | ​ | ​ | ​ | 919,625 | ​ | ​ | ​ | ​ | ​ | (93,459) | ​ | ​ | ​ | ​ | ​ | (27,545) | ​ | ​ | ​ | ​ | ​ | 1,365,456 | ​ | ​
2021 | ​ | ​ | CEO | ​ | ​ | ​ | ​ | 3,379,850 | ​ | ​ | ​ | ​ | ​ | (2,132,370) | ​ | ​ | ​ | ​ | ​ | 1,605,470 | ​ | ​ | ​ | ​ | ​ | (581,545) | ​ | ​ | ​ | ​ | ​ | 245,058 | ​ | ​ | ​ | ​ | ​ | 2,516,463 | ​ | ​
​ | Other NEOs(1) | ​ | ​ | ​ | ​ | 1,097,723 | ​ | ​ | ​ | ​ | ​ | (597,951) | ​ | ​ | ​ | ​ | ​ | 451,611 | ​ | ​ | ​ | ​ | ​ | (154,914) | ​ | ​ | ​ | ​ | ​ | 58,849 | ​ | ​ | ​ | ​ | ​ | 855,318 | ​ | ​
(1) The dollar amounts shown are average amounts for all NEO’s other than the CEO. |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |
Tabular List, Table | Tabular List of Important Financial Performance Measures In addition to Adjusted EBITDA, the various metrics and other factors that the Compensation Committee considers in making executive compensation awards on an annual basis are described yearly in greater detail in “Executive Compensation—Compensation Discussion and Analysis.” The below table represents an unranked list of the most important measures, including the Company-Selected Measure, used by the Company to link Compensation Actually Paid for all named executive officers to Company performance in 2025: Adjusted EBITDA Revenue Cash Flow The following charts illustrate the relationship between Compensation Actually Paid and (i) the Company’s Adjusted EBITDA, the Company-Selected Measure, (ii) net income (loss) and (iii) the cumulative total shareholder return of the Company and of the Nasdaq Small Cap Telecommunications Services index. |  |  |  |
Total Shareholder Return Amount | $ 63.69 | 33.82 | 75.35 | 85.56 | 74.18
Peer Group Total Shareholder Return Amount | 118.08 | 78.87 | 65.02 | 68.88 | 111.88
Net Income (Loss) | $ (23,522,000) | $ (31,852,000) | $ (18,754,000) | $ (7,583,000) | $ (20,809,000)
Company Selected Measure Amount | 190,044,000 | 184,084,000 | 189,451,000 | 172,688,000 | 135,628,000
PEO Name | Mr. Martin |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted EBITDA |  |  |  |
Non-GAAP Measure Description | The Board currently considers Adjusted EBITDA, a non-GAAP financial measure, to be the most important financial performance measure used to link CAP of the CEO and Non-CEO NEOs to Company performance. The Company defines Adjusted EBITDA as operating income (loss) before depreciation and amortization expense, transaction-related charges, one-time impairment or special charges, non-cash stock-based compensation and the gain (loss) on disposition of assets. The Company regularly reports on this metric to investors in its quarterly earnings releases and believes that the inclusion of these non-GAAP financial measures (and the associated reconciliations to the nearest GAAP financial measures) helps investors gain a meaningful understanding of the Company’s core operating results and enhances the usefulness of comparing such performance with prior periods. Accordingly, the Board considers Adjusted EBITDA as the best measure to track Company performance, as well as to align executive compensation with such performance. |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Revenue |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Cash Flow |  |  |  |
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ (1,930,777) | $ (1,461,322) | $ (2,126,000) | $ (1,852,208) | $ (2,132,370)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 2,114,681 | 608,377 | 1,995,000 | 2,254,395 | 1,605,470
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (1,030,252) | (1,175,482) | (591,262) | (338,571) | (581,545)
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 72,127 | (102,703) | (122,983) | (125,963) | 245,058
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (922,474) | (689,509) | (724,966) | (755,563) | (597,951)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 1,010,339 | 189,752 | 680,295 | 919,625 | 451,611
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (437,551) | (459,995) | (172,072) | (93,459) | (154,914)
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 92,223 | $ (115,932) | $ (147,057) | $ (27,545) | $ 58,849

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