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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands, lb in Millions | 12 Months Ended
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Dec. 31, 2016 USD ($) shares | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) lb shares | Dec. 31, 2013 lb
Significant Accounting Policies [Line Items] |  |  |  |
Entity Incorporation Date Of Incorporation | Jan. 11, 1991 |  |  |
Concentration risk, customer | two customers each accounted for 10% or more of the Companys revenues | two customers each accounted for 10% or more of the Companys revenues | two customers each accounted for 10% or more of the Companys revenues |
Deferred tax asset | $ 2,500 | $ 3,700 |  |
Operating loss carryforwards, limitations on use | All of the Companys remaining $5.4 million of NOLs are subject to annual limitations of $1.3 million. |  |  |
Options and warrants excluded from the calculation of diluted shares | shares | 73,034 | 106,290 | 4,449,624 |
Production and importation permission description | 22 million pounds in 2015 and reduces by approximately 4.5 million pounds each year and ends at zero in 2020. |  |  |
Production Or Importation Of Hcfc | lb |  |  | 51 | 63
Sales Revenue Services Net | $ 4,137 | $ 4,568 | $ 5,350 |
Refrigerants and Management Services [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Annual Service Revenue | 2,400 |  |  |
Sales Revenue Services Net | $ 1,300 |  |  |
Sales Revenue, Net [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Aggregate percentage of revenue the from customers accounted for more than 10% | 30.00% | 33.00% | 25.00% |
Customer |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Accounts receivable, net |  |  | $ 700 |

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