Concentrations of Credit Risk

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

5. Concentrations of Credit Risk

The Company maintains cash balances at several banks.  Accounts at each institution are insured by the Federal Deposit Insurance Corporation up to $250,000.  At March 31, 2013, the Company’s cash and cash equivalents in excess of the FDIC limits were $3.2 million.  The Company has not experienced any losses in such accounts and believes it is not exposed to any significant risks.