Fair Value Measurements	6 Months Ended
Jun. 30, 2013
Fair Value Measurements [Abstract]
Fair Value Measurements	2. Fair Value Measurements The Company measures certain financial assets at fair value on a recurring basis. The fair value of these financial assets was determined based on three levels of inputs, of which, the first two levels are considered observable and the last unobservable. The three levels of inputs that may be used to measure fair value are as follows: Level 1 – Quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 – Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; or the fair value is determined through the use of models or other valuation methodologies. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The inputs to determine fair value require significant management judgment or estimation. Assets and liabilities measured at fair value on a recurring basis consist of cash equivalents, marketable securities and debt security investments. As of June 30, 2013 and December 31, 2012, the reported fair value of marketable securities, using Level 1 inputs, was $592,000 and $600,000, respectively. Marketable securities are included in other assets on the Company’s unaudited condensed consolidated balance sheets. As of June 30, 2013, the Company no longer held debt security investments included in restricted cash. During March 2013, the Company sold the remainder of its debt security investments to be included in cash equivalents. The reported fair value of debt security investments as of December 31, 2012, using Level 1 inputs, was $3.5 million and is included in restricted cash on the Company’s unaudited condensed consolidated balance sheets. The Company had no cash equivalents as of June 30, 2013. As of December 31, 2012, cash equivalents consisted of $5.0 million, for which the fair value is measured using Level 1 inputs. The carrying amount of cash equivalents approximates fair value. At June 30, 2013, the Company reported $1.7 million of variable interest rate long-term debt for which the fair value is measured using Level 2 inputs. There was no long-term debt outstanding as of December 31, 2012. The fair value of long-term debt is based on estimates made by investment bankers based on the fair value of the Company’s variable rate long-term debt. For variable rate debt, interest rate changes do not impact financial position, operations or cash flows.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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