Re-Organization And Restructure Charge (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012 employee	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs	$ 523,000	$ 217,000	$ 740,000
Reduction of workforce, percent			10.00%
Reduction of workforce, number of employees			20
Remaining accrued severance	192,000		192,000
Semiconductor R&D Consolidation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs			217,000
Estimated annual savings			800,000
Remaining accrued severance
Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs			523,000
Estimated annual savings			1,400,000
Remaining accrued severance	$ 192,000		$ 192,000