Description of Business and Basis of Presentation (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2013 Segment manufacturing_location
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Manufacturing locations	2
Operating segments	1
Warranty period, minimum, in years	1 year
Warranty period, maximum, in years	2 years
Additional paid in capital increase	$ 1,200,000
Amount associated with stock-based compensation plans	1,200,000
Repurchase of shares	$ 20,000