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Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands, MT in Millions | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jul. 31, 2016 | Dec. 31, 2022 USD ($) segment MT shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Significant accounting policies |  |  |  |  |  |
Number of reportable segments | segment |  | 1 |  |  |  |
Stepdown from baseline levels, final rule |  | 10.00% |  |  |  |
Cumulative reduction in baseline, subsequent allowance |  | 40.00% |  |  |  |
Allocation allowance received | MT |  | 3 |  |  |  |
Allocation allowance received as a percentage of total HFC consumption |  | 1.00% |  |  |  |
Goodwill impairment loss |  | $ 0 | $ 0 |  |  |
Right of use asset |  | 7,339 | 6,803 |  |  |
Operating lease liabilities |  | 7,426 | 6,882 |  |  |
Cylinder deposit liability |  | 13,600 | 12,300 |  |  |
Contract term | 5 years |  |  |  |  |
Renewal term | 5 years |  |  |  |  |
Deferred tax assets, valuation allowance |  | $ 15,100 | 15,149 | $ 19,000 | $ 19,000 | $ 11,300
Current year utilization comprise of deferred tax |  |  | 7,270 |  |  |
Net operating losses due to additional income |  |  | 16,800 |  |  |
Valuation allowance |  |  | $ 3,900 |  |  |
Options excluded from the calculation of diluted shares | shares |  | 28,467 | 2,583,523 |  |  |
Federal |  |  |  |  |  |
Significant accounting policies |  |  |  |  |  |
Operating loss carryforwards |  | $ 0 |  |  |  |
Current year utilization comprise of deferred tax |  | 29,300 |  |  |  |
State |  |  |  |  |  |
Significant accounting policies |  |  |  |  |  |
Operating loss carryforwards |  | $ 1,500 |  |  |  |
Customer Concentration Risk | No Customer | Revenue from Contract with Customer |  |  |  |  |  |
Significant accounting policies |  |  |  |  |  |
Concentration risk percentage |  | 10.00% |  |  |  |
Customer Concentration Risk | One Customer | Revenue from Contract with Customer |  |  |  |  |  |
Significant accounting policies |  |  |  |  |  |
Concentration risk percentage |  | 10.00% | 10.00% |  |  |
Customer Concentration Risk | One Customer | Accounts Receivable |  |  |  |  |  |
Significant accounting policies |  |  |  |  |  |
Concentration risk percentage |  |  | 10.00% |  |  |

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