Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands, lb in Millions	12 Months Ended
	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