| Pay vs Performance Disclosure - USD ($) | 12 Months Ended |
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 |
| Pay vs Performance Disclosure [Table] | | | |
| Pay vs Performance [Table Text Block] | Value of Initial Fixed $100 Investment Based On: Net (Loss) Income (in thousands) Adjusted EBITDA (in thousands) Year Summary Compensation Table Total for PEO (a) Compensation Actually Paid to PEO (b) Average Summary Compensation Table Total for Non-PEO NEOs (c) Average Compensation Actually Paid to Non-PEO NEOs (b)(c) Total Shareholder Return Peer Group Total Shareholder Return (d) 2022 $ 2,816,123 $ 2,212,185 $ 1,352,904 $ 966,594 $ 63 $ 90 $ (8,379) $ 75,961 2021 2,420,824 1,620,948 1,050,218 810,027 101 116 1,003,537 65,726 2020 2,875,067 2,548,852 1,173,111 1,107,434 105 110 120,659 55,789 | | |
| Named Executive Officers, Footnote [Text Block] | The dollar amounts reported are the amounts of total compensation reported for our CEO, Mr. French, in the Summary Compensation Table (SCT) for fiscal years 2022, 2021 and 2020. Mr. French served as CEO for each of the years presented | | |
| Peer Group Issuers, Footnote [Text Block] | The Peer Group selected for Total Shareholder Return comparisons is the Nasdaq Telecommunications Index. | | |
| PEO Total Compensation Amount | $ 2,816,123 | $ 2,420,824 | $ 2,875,067 |
| PEO Actually Paid Compensation Amount | $ 2,212,185 | 1,620,948 | 2,548,852 |
| Adjustment To PEO Compensation, Footnote [Text Block] | The dollar amounts reported represent the amount of CAP, as computed in accordance with SEC rules. The dollar amounts do not reflect the actual amounts of compensation paid to our CEO or other NEOs during the applicable year, but rather is a value calculated under applicable SEC rules. In general, the amounts also include the year-end value of equity awards granted during the reported year and the change in the value of equity awards 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. NEOs do not participate in a defined benefit plan so no adjustment for pension benefits is included. Similarly, no adjustment is made for dividends as there are no dividend rights associated with the equity awards. To calculate the amounts of CAP, the following amounts were deducted from and added to (as applicable) “Total” compensation as reported in the SCT. No equity awards failed to meet the applicable vesting conditions during the applicable periods and there were therefore no related amounts subtracted. Year Executive(s) Summary Compensation Table Total ($) Subtract Stock Awards ($) (i) Add Year-End Equity Value ($) (ii) Change in Value of Prior Equity Awards ($) (ii) Add Change in Value of Vested Equity Awards ($) (ii) Compensation Actually Paid ($) 2022 CEO $ 2,816,123 $ (1,413,938) $ 1,175,997 $ (270,438) $ (95,559) $ 2,212,185 Other NEOs 1,352,904 (751,994) 556,781 (161,302) (29,795) 966,594 2021 CEO 2,420,824 (1,387,736) 1,235,913 (503,285) (144,768) 1,620,948 Other NEOs 1,050,218 (488,300) 399,158 (126,310) (24,739) 810,027 2020 CEO 2,875,067 (1,316,267) 1,220,367 (26,928) (203,387) 2,548,852 Other NEOs 1,173,111 (441,113) 390,041 (2,843) (11,762) 1,107,434 _______________________________________________________ (i) Represents the grant date fair value of the equity awards as reported in the “Stock Awards” column in the SCT for each applicable year. (ii) The fair value of equity awards reported for CAP purposes were valued at each fiscal year end during the vesting period. As discussed in “Executive Compensation – Compensation Discussion and Analysis,” the Company currently grants three types of equity awards. The RTSR PSU awards were valued via Monte Carlo Simulation, the RSU awards were valued using the market closing price of the Company's common stock, and the Strategic Retention PSU awards were valued using the market closing price of the Company's stock and the Company's current assessment of performance towards the underlying objectives. Certain non-PEO's compensation during 2020 included awards of incentive stock options. These option awards were valued using a Black-Scholes option pricing model. | | |
| Non-PEO NEO Average Total Compensation Amount | $ 1,352,904 | 1,050,218 | 1,173,111 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 966,594 | 810,027 | 1,107,434 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | The dollar amounts reported represent the amount of CAP, as computed in accordance with SEC rules. The dollar amounts do not reflect the actual amounts of compensation paid to our CEO or other NEOs during the applicable year, but rather is a value calculated under applicable SEC rules. In general, the amounts also include the year-end value of equity awards granted during the reported year and the change in the value of equity awards 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. NEOs do not participate in a defined benefit plan so no adjustment for pension benefits is included. Similarly, no adjustment is made for dividends as there are no dividend rights associated with the equity awards. To calculate the amounts of CAP, the following amounts were deducted from and added to (as applicable) “Total” compensation as reported in the SCT. No equity awards failed to meet the applicable vesting conditions during the applicable periods and there were therefore no related amounts subtracted. Year Executive(s) Summary Compensation Table Total ($) Subtract Stock Awards ($) (i) Add Year-End Equity Value ($) (ii) Change in Value of Prior Equity Awards ($) (ii) Add Change in Value of Vested Equity Awards ($) (ii) Compensation Actually Paid ($) 2022 CEO $ 2,816,123 $ (1,413,938) $ 1,175,997 $ (270,438) $ (95,559) $ 2,212,185 Other NEOs 1,352,904 (751,994) 556,781 (161,302) (29,795) 966,594 2021 CEO 2,420,824 (1,387,736) 1,235,913 (503,285) (144,768) 1,620,948 Other NEOs 1,050,218 (488,300) 399,158 (126,310) (24,739) 810,027 2020 CEO 2,875,067 (1,316,267) 1,220,367 (26,928) (203,387) 2,548,852 Other NEOs 1,173,111 (441,113) 390,041 (2,843) (11,762) 1,107,434 _______________________________________________________ (i) Represents the grant date fair value of the equity awards as reported in the “Stock Awards” column in the SCT for each applicable year. (ii) The fair value of equity awards reported for CAP purposes were valued at each fiscal year end during the vesting period. As discussed in “Executive Compensation – Compensation Discussion and Analysis,” the Company currently grants three types of equity awards. The RTSR PSU awards were valued via Monte Carlo Simulation, the RSU awards were valued using the market closing price of the Company's common stock, and the Strategic Retention PSU awards were valued using the market closing price of the Company's stock and the Company's current assessment of performance towards the underlying objectives. Certain non-PEO's compensation during 2020 included awards of incentive stock options. These option awards were valued using a Black-Scholes option pricing model. | | |
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Pay versus TSR : As shown in the chart above, the PEO and other NEO's CAP amounts are aligned with the Company's TSR. This is due primarily to the Company's use of equity incentives, which are tied in part directly to stock price in addition to the Company's financial performance. | | |
| Compensation Actually Paid vs. Net Income [Text Block] | | | |
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Pay versus Adjusted EBITDA : As shown in the chart above, the Company's Adjusted EBITDA has steadily increased over the disclosure period and is aligned with the PEO's and other NEOs' CAP. The Company considers Adjusted EBITDA to be the most important financial performance measure used to link CAP to the performance of PEO and Non-PEO NEOs as the Company believes it is the measure that most closely reflects the continued financial growth of the Company. | | |
| Tabular List [Table Text Block] | The three items listed below represent the most important measures used to link executive compensation actually paid to the Company's actual performance: a. Adjusted EBITDA b. Relative Total Shareholder Return c. Total Fiber Homes/Businesses Passed | | |
| Total Shareholder Return Amount | $ 63 | 101 | 105 |
| Peer Group Total Shareholder Return Amount | 90 | 116 | 110 |
| Net Income (Loss) | $ (8,379,000) | $ 1,003,537,000 | $ 120,659,000 |
| Company Selected Measure Amount | 75,961,000 | 65,726,000 | 55,789,000 |
| PEO Name | Mr. French | | |
| Measure [Axis]: 1 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Adjusted EBITDA | | |
| Measure [Axis]: 2 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Relative Total Shareholder Return | | |
| Measure [Axis]: 3 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | Total Fiber Homes/Businesses Passed | | |
| PEO [Member] | Adjustment, Subtract Stock Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | $ (1,413,938) | $ (1,387,736) | $ (1,316,267) |
| PEO [Member] | Adjustment, Add Year End Equity Value [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 1,175,997 | 1,235,913 | 1,220,367 |
| PEO [Member] | Adjustment, Change In Value Of Prior Equity Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (270,438) | (503,285) | (26,928) |
| PEO [Member] | Adjustment, Add Change In Value Of Vested Equity Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (95,559) | (144,768) | (203,387) |
| Non-PEO NEO [Member] | Adjustment, Subtract Stock Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (751,994) | (488,300) | (441,113) |
| Non-PEO NEO [Member] | Adjustment, Add Year End Equity Value [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 556,781 | 399,158 | 390,041 |
| Non-PEO NEO [Member] | Adjustment, Change In Value Of Prior Equity Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (161,302) | (126,310) | (2,843) |
| Non-PEO NEO [Member] | Adjustment, Add Change In Value Of Vested Equity Awards [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | $ (29,795) | $ (24,739) | $ (11,762) |
