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Fair Value of Financial Instruments | 12 Months Ended
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Dec. 31, 2016
Fair Value of Financial Instruments |
Fair Value of Financial Instruments | Note 3: Fair Value of Financial Instruments The estimated fair values of financial instruments outstanding were (in thousands):
|  | December 31, 2016 |
|  |  |  | Unrealized |  | Unrealized |  | Fair |
|  | Cost |  | Gains |  | Losses |  | Value |
Cash and cash equivalents |  | $ | 8,766 |  | $ | — |  | $ | — |  | $ | 8,766 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government-sponsored enterprise bonds |  | $ | 762 |  | $ | — |  | $ | — |  | $ | 762 |
Corporate notes |  |  | 240 |  |  | — |  |  | — |  |  | 240 |
Total short-term investments |  | $ | 1,002 |  | $ | — |  | $ | — |  | $ | 1,002 |
|  | December 31, 2015 |
|  |  |  | Unrealized |  | Unrealized |  | Fair |
|  | Cost |  | Gains |  | Losses |  | Value |
Cash and cash equivalents |  | $ | 5,640 |  | $ | — |  | $ | — |  | $ | 5,640 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government-sponsored enterprise bonds |  | $ | 6,243 |  | $ | — |  | $ | — |  | $ | 6,243 |
Municipal bonds |  |  | 200 |  |  | — |  |  | — |  |  | 200 |
Corporate notes |  |  | 8,171 |  |  | — |  |  | (16) |  |  | 8,155 |
Total short-term investments |  | $ | 14,614 |  | $ | — |  | $ | (16) |  | $ | 14,598 |
The unrealized losses from available-for-sale securities as of December 31, 2016 and 2015 were not material. The estimated fair values of available-for-sale securities with unrealized losses as of December 31, 2015 were (in thousands):
|  | December 31, 2015 |
|  |  |  |  | Unrealized |  | Fair |
|  | Cost |  | Losses |  | Value |
Short-term investments: |  |  |  |  |  |  |  |  |  |
Corporate notes |  | $ | 8,171 |  | $ | (16) |  | $ | 8,155 |
Total short-term investments |  | $ | 8,171 |  | $ | (16) |  | $ | 8,155 |
As of December 31, 2015, substantially all of the available-for-sale securities with unrealized losses had been in a loss position for less than 12 months. Cost and fair value of investments based on two maturity groups were (in thousands):
|  | December 31, 2016 |
|  |  |  |  | Unrealized |  | Unrealized |  | Fair |
|  | Cost |  | Gains |  | Losses |  | Value |
Due within 1 year |  | $ | 1,002 |  | $ | — |  | $ | — |  | $ | 1,002 |
|  | December 31, 2015 |
|  |  |  |  | Unrealized |  | Unrealized |  | Fair |
|  | Cost |  | Gains |  | Losses |  | Value |
Due within 1 year |  | $ | 14,614 |  | $ | — |  | $ | (16) |  | $ | 14,598 |
The following table represents the Company’s fair value hierarchy for its financial assets (cash equivalents and investments) as of December 31, 2016 and 2015 (in thousands):
|  | December 31, 2016 |
|  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3 |
Money market funds |  | $ | 84 |  | $ | 84 |  | $ | — |  | $ | — |
U.S. government-sponsored enterprise bonds |  |  | 3,767 |  |  | — |  |  | 3,767 |  |  | — |
Municipal bonds |  |  | 4,027 |  |  | — |  |  | 4,027 |  |  | — |
Corporate notes |  |  | 480 |  |  | — |  |  | 480 |  |  | — |
Total assets |  | $ | 8,358 |  | $ | 84 |  | $ | 8,274 |  | $ | — |
|  | December 31, 2015 |
|  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3 |
Money market funds |  | $ | 2,238 |  | $ | 2,238 |  | $ | — |  | $ | — |
U.S. government-sponsored enterprise bonds |  |  | 7,525 |  |  | — |  |  | 7,525 |  |  | — |
Municipal bonds |  |  | 200 |  |  | — |  |  | 200 |  |  | — |
Corporate notes |  |  | 8,255 |  |  | — |  |  | 8,255 |  |  | — |
Certificates of deposit |  |  | 240 |  |  | — |  |  | 240 |  |  | — |
Total assets |  | $ | 18,458 |  | $ | 2,238 |  | $ | 16,220 |  | $ | — |
There were no transfers in or out of Level 1 and Level 2 securities during the years ended December 31, 2016 and 2015.

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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=36462937&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=49121117&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=49121117&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=49121117&loc=d3e13433-108611 + Details
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