Intangible and Other Assets (Tables)

3 Months Ended

Mar. 31, 2013

Intangible and Other Assets [Abstract]

Schedule of Expected Amortization Expense [Table Text Block]

For disclosure purposes, the table below includes future amortization expense for patents and licenses owned by the Company as well as estimated amortization expense related to patents that remain pending at March 31, 2013 of $90 thousand. This estimated expense for patents pending assumes that the patents are issued immediately, and therefore are being amortized over five years on a straight-line basis. Estimated amortization expense for the periods ending December 31, is as follows: 

(in thousands)	Amortization Expense
2013 remaining 9 months	$	56
2014	64
2015	41
2016	27
2017	23
2018	10
Thereafter	27
	$	248