Description of Business and Basis of Presentation (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Segment manufacturing_location
Description of Business and Basis of Presentation [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 59,500,000		$ 59,500,000
Deferred Revenue, Additions	3,300,000	4,500,000
Description of Business and Basis of Presentation (Textual) [Abstract]
Manufacturing locations			3
Operating segments			1
Warranty period, minimum, in years			1 year
Warranty period, maximum, in years			4 years
Cost of Inventory Shipped	2,303,000	2,490,000	2,303,000
Deferred revenue and customer deposits	$ 2,826,000	$ 1,043,000	$ 2,826,000