Organization and Summary of Significant Accounting Policies - Composition of Inventory (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished goods	$ 3,226,200	$ 2,101,300
Raw materials	3,034,000	2,717,300
Inventory reserve for obsolescence	(213,400)	(120,000)
Inventories, net	$ 6,046,800	$ 4,698,600