Annual report pursuant to Section 13 and 15(d)

Product warranty (Tables)

v2.4.0.6
Product warranty (Tables)
12 Months Ended
Dec. 31, 2012
Guarantees [Abstract]  
Schedule of Product Warranty Reserve
Changes in the Company’s warranty reserve were as follows:

Warranty reserve, December 31, 2010
$
53,000

Warranty provision for units sold
76,637

Costs of warranty incurred
(72,637
)
Warranty reserve, December 31, 2011
57,000

Warranty provision for units sold
160,684

Costs of warranty incurred
(127,484
)
Warranty reserve, December 31, 2012
$
90,200