Annual report pursuant to Section 13 and 15(d)

Product warranty (Tables)

v2.4.1.9
Product warranty (Tables)
12 Months Ended
Dec. 31, 2014
Guarantees [Abstract]  
Schedule of Product Warranty Reserve
Changes in the Company’s warranty reserve were as follows:
Warranty reserve, December 31, 2012
$
90,200

Warranty provision for units sold
179,841

Costs of warranty incurred
(175,041
)
Warranty reserve, December 31, 2013
95,000

Warranty provision for units sold
207,583

Costs of warranty incurred
(155,583
)
Warranty reserve, December 31, 2014
$
147,000