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Note 5 - Fair Value Measurements | 9 Months Ended
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Sep. 30, 2017
Notes to Financial Statements |
Fair Value Disclosures [Text Block] |
5. |  | Fair Value Measurements
Fair value is an exit price, representing the amount that would be received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants based on assumptions that market participants would use in pricing an asset or liability. As a basis for classifying the fair value measurements, a three -tier fair value hierarchy, which classifies the fair value measurements based on the inputs used in measuring fair value, was established as follows: (Level 1 ) observable inputs such as quoted prices in active markets for identical assets or liabilities; (Level 2 ) significant other observable inputs that are observable either directly or indirectly; and (Level 3 ) significant unobservable inputs for which there is little or no market data, which requires the Company to develop its own assumptions. This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. On a recurring basis, the Company records its investments at fair value. The Company’s investments are all classified within Level 2 of the fair value hierarchy. These investments classified within Level 2 of the fair value hierarchy are valued based on matrix pricing compiled by third party pricing vendors, using observable market inputs such as interest rates, yield curves, and credit risk. The fair value hierarchy of the Company’s cash equivalents and investments at fair value is as follows:
|  |  |  | Fair Value Measurements at Reporting Date Using
|  | September 30, 2017 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 5,324 |  |  | $ | - |  |  | $ | 5,324 |  |  | $ | - |
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank certificates of deposit |  | $ | 25,750 |  |  | $ | - |  |  | $ | 25,750 |  |  | $ | - |
|  |  |  | Fair Value Measurements at Reporting Date Using
|  | December 31, 2016 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 68,352 |  |  | $ | - |  |  | $ | 68,352 |  |  | $ | - |
Bank certificates of deposit |  |  | 750 |  |  |  | - |  |  |  | 750 |  |  |  | - |
Total cash equivalents |  | $ | 69,102 |  |  | $ | - |  |  | $ | 69,102 |  |  | $ | - |
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank certificates of deposit |  | $ | 20,500 |  |  | $ | - |  |  | $ | 20,500 |  |  | $ | - |

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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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