Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
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
Deferred tax asset	$ 2,079,000		$ 2,079,000		$ 3,663,000
Operating loss carryforwards, limitations on use			All of the Companys remaining NOLs of approximately $5,000,000 are subject to annual limitations of $1,300,000.
Options and warrants excluded from the calculation of diluted shares	73,034	1,196,643	123,034	75,000
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.
Sales Revenue, Net
Significant Accounting Policies [Line Items]
Aggregate percentage of revenue the from customers accounted for more than 10%			33.00%	34.00%