Concentration of Credit Risk	12 Months Ended
Concentration of Credit Risk	Dec. 31, 2013
Risks And Uncertainties [Abstract]
Concentration of Credit Risk	NOTE B – CONCENTRATION OF CREDIT RISK We maintain the majority of our cash at one financial institution. From December 31, 2010 to December 31, 2012, all noninterest-bearing transaction accounts are fully insured by the Federal Deposit Insurance Corporation, regardless of the balance of the account, at all insured institutions. At December 31, 2013, our uninsured cash balance was approximately $31.7 million. Our term and project loans bear a variable interest rate based on LIBOR and our primary mortgage bears interest at a variable rate based on the prime rate. See NOTE L for further detail on these instruments. These instruments expose us to interest rate risk. On our primary mortgage, for an increase of every 100 basis points, our interest obligation increases, at most, by approximately $1,000 per month until maturity in July 2016. On our term loan, an increase of every 100 basis points to the interest rate increases our interest obligation, at most, by approximately $4,000 per month until maturity in July 2016. An increase of every 100 basis points to the interest rate for our project loan increases our interest obligation by approximately $8,400 per month until maturity in July 2014. If an increase to the rates on these instruments occurs, it will have an adverse effect on our operating cash flows and financial condition but we believe it would not be material.

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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