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Warrants - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Oct. 31, 2017 | Mar. 31, 2018 | Aug. 31, 2016
Comstock Investors X, L.C. [Member] |  |  |
Class of Stock [Line Items] |  |  |
Additional capital raised | $ 5,000 |  |
Class A [Member] | BridgeCom [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise date |  | Jul. 12, 2021 |
Warrant exercise price |  | $ 7.21 |
Class A [Member] | Comstock Investors VII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Initial investment amount |  | $ 250 |
Trading days preceding the issuance of warrant |  | 20 days |
Warrant expiration date |  | Mar. 14, 2023 |
Warrant expiration date |  | Apr. 05, 2023 |
Class A [Member] | Comstock Investors VIII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Initial investment amount |  | $ 250 |
Trading days preceding the issuance of warrant |  | 20 days |
Warrant expiration date |  | Dec. 12, 2023 |
Warrant expiration date |  | Dec. 17, 2023 |
Class A [Member] | Comstock Investors X, L.C. [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common stock and warrants exercisable | 50,000 | 150,000 | 150,000
Warrant exercise date | Oct. 13, 2027 | Aug. 15, 2026 |
Trading days preceding the issuance of warrant |  | 20 days |
Class A [Member] | Maximum [Member] | BridgeCom [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common stock and warrants exercisable |  | 142,857 |
Class A [Member] | Maximum [Member] | Comstock Growth Fund [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common stock and warrants exercisable |  | 76,244 |
Warrant expiration date |  | Nov. 12, 2024 |
Warrant expiration date |  | May 12, 2025 |
Warrant exercise period from date of issuance |  | 10 years |
Warrant exercise price |  | $ 7.63 |
Class A [Member] | Maximum [Member] | Comstock Growth Fund [Member] | Affiliates and Insiders [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise price |  | $ 7.63 |
Class A [Member] | Maximum [Member] | Comstock Investors VII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common stock and warrants exercisable |  | 16,572 |
Warrant exercise date |  | Apr. 05, 2023 |
Class A [Member] | Maximum [Member] | Comstock Investors VIII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common stock and warrants exercisable |  | 14,573 |
Warrant exercise date |  | Dec. 17, 2023 |
Class A [Member] | Minimum [Member] | Comstock Growth Fund [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise price |  | $ 4.91 |
Class A [Member] | Minimum [Member] | Comstock Growth Fund [Member] | Affiliates and Insiders [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise price |  | $ 7.30 |
Class A [Member] | Minimum [Member] | Comstock Investors VII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise date |  | Mar. 14, 2023 |
Class A [Member] | Minimum [Member] | Comstock Investors VIII, L.C [Member] |  |  |
Class of Stock [Line Items] |  |  |
Warrant exercise date |  | Dec. 12, 2023 |

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