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Fair Value Measurements | 6 Months Ended
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Jun. 30, 2016
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The fair value of a financial instrument is the amount that could be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Financial assets are marked to bid prices and financial liabilities are marked to offer prices. Fair value measurements do not include transaction costs. A fair value hierarchy is used to prioritize the quality and reliability of the information used to determine fair values of each financial instrument. Categorization within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is defined into the following three categories: Level 1: Quoted market prices in active markets for identical assets or liabilities. Level 2: Observable market based inputs or unobservable inputs that are corroborated by market data. Level 3: Unobservable inputs that are not corroborated by market data. The following table presents the Company’s hierarchy for its assets, measured at fair value on a recurring basis, as of June 30, 2016 (dollar amounts in thousands):
| Level 1 |  | Level 2 |  | Level 3 |  |
| Quoted Prices in Active Markets for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |  | Total
Investments available-for-sale |  |  |  |  |  |  |  |  |  |  |
U.S. government security funds | $ | 1,797 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,797 |
Investment securities | 1,275 |  |  | — |  |  | — |  |  | 1,275 |
Total assets measured at fair value on a recurring basis | $ | 3,072 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,072 |
The following table presents the Company’s hierarchy for its assets, measured at fair value on a recurring basis, as of December 31, 2015 (dollar amounts in thousands):
| Level 1 |  | Level 2 |  | Level 3 |  |
| Quoted Prices in Active Markets for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |  | Total
Investments available-for-sale |  |  |  |  |  |  |  |  |  |  |
U.S. government security funds | $ | 1,772 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,772 |
Investment securities | 1,044 |  |  | — |  |  | — |  |  | 1,044 |
Total assets measured at fair value on a recurring basis | $ | 2,816 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,816 |
Investments available-for-sale — The majority of the Company’s investment portfolio consists of U.S. government security funds. The Level 1 securities are valued using quoted prices for identical assets in active markets including equity securities and U.S. government treasuries. Investment securities — The Company’s trading portfolio consists of various marketable securities that are valued using quoted prices in active markets. For the six months ended June 30, 2016, and for the year ended December 31, 2015, there were no fair value measurements using the significant unobservable inputs (Level 3). The carrying amounts reflected on the condensed consolidated balance sheet for cash and cash equivalents, accounts receivable, accounts payable and the revolving credit facility payable approximate fair value due to their short-term nature. During the six months ended June 30, 2016 and 2015, the Company did not have any re-measurements of non-financial assets at fair value on a nonrecurring basis subsequent to their initial recognition.

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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 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13504-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 + Details
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