Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accounting Policies [Abstract]
Cash, FDIC insured amount	$ 250,000
Cash, held in FDIC insured institutions	326,000		$ 340,000
Allowance for doubtful accounts receivable	2,700,000		$ 1,000,000
Provision for sales returns	$ 400,000	$ 440,000