Concentrations Of Credit Risk	12 Months Ended
Concentrations Of Credit Risk	Dec. 31, 2013
Risks and Uncertainties [Abstract]
Concentration Of Credit Risk	13. CONCENTRATIONS OF CREDIT RISK Financial instruments that potentially subject us to a concentration of credit risk principally consist of cash and cash equivalents and our available for sale securities. Cash and cash equivalents are primarily held in bank accounts and overnight investments. At times our cash balances on deposit with banks may exceed the balance insured by the F.D.I.C. Our available for sale securities are held in accounts with brokerage institutions and consist of mutual funds invested primarily in short-term municipal securities. We maintain our investments with what management believes to be quality financial institutions and while we limit the amount of credit exposure to any one institution, we could be subject to credit risks from concentration of investments in a single fund as well as credit risks arising from adverse conditions in the financial markets as a whole.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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