Nature Of Business And Summary Of Significant Accounting Policies (Schedule Of Concentration Of Accounts Receivable Attributable To Certain Major Customers) (Details)	Dec. 31, 2011	Dec. 31, 2010
Distributor A [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Percent of total accounts receivable	31.00%	0.00%
Distributor B [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Percent of total accounts receivable	30.00%	0.00%
Distributor C [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Percent of total accounts receivable	18.00%	0.00%
Collaborator A [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Percent of total accounts receivable	14.00%	52.00%
Collaborator C [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Percent of total accounts receivable	0.00%	42.00%