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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements ASC 820, Fair Value Measurements and Disclosures, provides a framework for measuring fair value and requires expanded disclosures regarding fair value measurements. ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 describes three levels of inputs that may be used to measure fair value:
Level 1: | Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. The Company’s Level 1 assets are investments in money market mutual funds, United States treasuries, and certificates of deposit.
Level 2: | Quoted prices for similar assets or liabilities in active markets; or observable prices that are based on observable market data, based on directly or indirectly market-corroborated inputs. The Company’s Level 2 assets are investments in certain corporate notes and its Level 2 liabilities are interest rate swaps.
Level 3: | Unobservable inputs that are supported by little or no market activity, and are developed based on the best information available given the circumstances. The Company has no Level 3 assets.
Assets and liabilities measured at fair value are based the valuation techniques identified in the table below. The valuation techniques are:
(a) | Market approach—prices and other relevant information generated by market transactions involving identical or comparable assets.
(b) | The valuations of the interest rate swaps intended to mitigate the Company’s interest rate risk are determined with the assistance of a third-party financial institution using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each instrument. This analysis utilizes observable market-based inputs, including interest rate curves and interest rate volatility, and reflects the contractual terms of these instruments, including the period to maturity.
The following tables present financial assets and liabilities at December 31, 2017 and December 31, 2016 for which the Company measures fair value on a recurring basis, by level, within the fair value hierarchy:
December 31, 2017 | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Valuation Technique
Assets |  |  |  |  |  |  |  |  |
Money market mutual funds | $ | 7,318 |  |  | $ | 7,318 |  |  | $ | — |  |  | $ | — |  |  | (a)
United States treasuries | 1,001 |  |  | 1,001 |  |  | — |  |  | — |  |  | (a)
Liabilities |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | 69 |  |  | $ | — |  |  | $ | 69 |  |  | $ | — |  |  | (b)
December 31, 2016 | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Valuation Technique
Assets |  |  |  |  |  |  |  |  |
Money market mutual funds | $ | 21,848 |  |  | $ | 21,848 |  |  | $ | — |  |  | $ | — |  |  | (a)
Certificates of deposit | 3,864 |  |  | 3,864 |  |  | — |  |  | — |  |  | (a)
Liabilities |  |  |  |  |  |  |  |  |
Interest rate swaps | $ | 158 |  |  | $ | — |  |  | $ | 158 |  |  | $ | — |  |  | (b)
Certain financial instruments are carried at cost on the consolidated balance sheets, which approximates fair value due to their short-term, highly liquid nature. These instruments include cash and cash equivalents, accounts receivable, accounts payable, and accrued expenses. Assets Measured and Recorded at Fair Value on a Nonrecurring Basis The Company's non-financial assets, such as goodwill, intangible assets, and other long-lived assets resulting from business combinations, are measured at fair value using income approach valuation methodologies at the date of acquisition and subsequently re-measured if an impairment exists. There were no impairments of the Company’s non-financial assets noted as of December 31, 2017 or 2016. The Company does not have any liabilities that are recorded at fair value on a non-recurring basis.

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + 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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