Commitments and Contingencies (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Dec. 20, 2012	Dec. 31, 2012	Jun. 30, 2013
Commitments And Contingencies [Line Items]
Payments for Legal Settlements	$ 2,100,000
Settlement benefit (Note 3)		1,000,000
Additional Royalties and Commissions, Accrual Interest Percentage		3.25%
Additional Royalties and Commissions Payable, Installment Amount		100,000
Accrued royalties and sales commissions (Note 3)		3,500,000
Additional Annual Installment Includes In Other Current Liability		$ 100,000	$ 300,000