Accounts Payable and Accrued Expenses - Schedule of Product Warranty Liability (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accrued warranty reserve, beginning of period	$ 614,000	$ 942,000
Accrual for product warranties issued	306,000	196,000
Product replacements and other warranty expenditures	(206,000)	(72,000)
Expiration of warranties	(175,000)	(470,000)
Accrued warranty reserve, end of period	$ 539,000	$ 596,000