Accrued Expenses - Changes in Warranty Reserve (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] | ||
| Balance, beginning of the year | $ 358,296 | $ 143,364 |
| Provisions for warranty and beta replacements | 222,408 | 235,377 |
| Warranty payments or beta replacements | (244,811) | (20,445) |
| Balance, end of the year | $ 335,893 | $ 358,296 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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