Condensed Consolidated Financial Statements' Components - Depreciation and Accretion (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Property, Plant and Equipment [Line Items] | ||||
| Total depreciation | $ 831 | $ 892 | $ 1,668 | $ 1,786 |
| Accretion | 23 | 175 | 45 | 349 |
| Total depreciation and accretion expense | 854 | 1,067 | 1,713 | 2,135 |
| Leasehold improvements | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Depreciation | 25 | 39 | 52 | 75 |
| Asset retirement costs | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Asset retirement costs | 23 | (104) | 46 | (208) |
| Paging and computer equipment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Depreciation | 718 | 877 | 1,441 | 1,778 |
| Furniture, fixtures and vehicles | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Depreciation | $ 65 | $ 80 | $ 129 | $ 141 |