Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Minimum Facility Lease Payments Before Common Area Maintenance Charges

The Company’s annual minimum facility lease payments before common area maintenance charges as of December 31, 2017 are as follows:

2018	$	512,533
2019		514,977
2020		517,457
2021		43,139
	$	1,588,106

Summary of Product Warranty Liability included in Accrued Liabilities in Balance Sheets

The following is a summary of the Company’s general product warranty liability, which is included in accrued liabilities in the accompanying balance sheets for the years ended December 31, 2017 and 2016:

	Years Ended December 31,
	2017			2016
Beginning balance	$	50,426		$	20,213
Cost of warranty claims		(9,814	)		(71,404	)
Increase (decrease) in warranty reserve		(3,456	)		101,617
Ending balance	$	37,156		$	50,426