Restricted Cash

12 Months Ended

Dec. 31, 2012

Restricted Cash [Abstract]

Restricted Cash

Note 5 – Restricted Cash

Restricted cash consists of a certificate of deposit held by our bank as collateral for a letter of credit in the same notional amount held by our landlord to secure our obligations under our Lease Agreement dated May 26, 2004 for our headquarters location in Warrington, Pennsylvania (See, Note 13 – Commitments, for further discussion on our leases).  Under terms of the lease agreement the required restricted cash balance was $400,000 for all periods presented.