Condensed Consolidated Financial Statements' Components - Depreciation and Accretion (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Property, Plant and Equipment [Line Items]
Total depreciation	$ 837	$ 894
Accretion	22	174
Total depreciation and accretion expense	859	1,068
Leasehold improvements
Property, Plant and Equipment [Line Items]
Depreciation	27	36
Asset retirement costs
Property, Plant and Equipment [Line Items]
Asset retirement costs	23	(104)
Paging and computer equipment
Property, Plant and Equipment [Line Items]
Depreciation	723	901
Furniture, fixtures and vehicles
Property, Plant and Equipment [Line Items]
Depreciation	$ 64	$ 61

Depreciation (Appreciation), Asset Retirement Costs

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- Definition

Depreciation, Net Of Asset Retirement Costs

+ References

No definition available.

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- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481879/410-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
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-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
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-Topic 230
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-Publisher FASB
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- Definition

The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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