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Fair Value Measurements
9 Months Ended
Feb. 29, 2020
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The Company is required to categorize both financial and nonfinancial assets and liabilities based on the following fair value hierarchy.  The fair value of an asset is the price at which the asset could be sold in an orderly transaction between unrelated, knowledgeable, and willing parties able to engage in the transaction. A liability’s fair value is defined as the amount that would be paid to transfer the liability to a new obligor in a transaction between such parties, not the amount that would be paid to settle the liability with the creditor.

Level 1 - Quoted prices in active markets for identical assets or liabilities
Level 2 - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly
Level 3 - Unobservable inputs for the asset or liability that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities

The disclosures of fair value of certain financial assets and liabilities that are recorded at cost are as follows:
Cash and cash equivalents: The carrying amount approximates fair value due to the short maturity of these instruments.

Long-term debt: The carrying value of the Company’s long-term debt is at its stated value.  We have not elected to carry our long-term debt at fair value.  Fair values for debt are based on quoted market prices or published forward interest rate curves, which are level 2 inputs. The fair value and carrying value of the Company’s borrowings under its long-term debt were as follows (in thousands):
February 29, 2020June 1, 2019
Carrying ValueFair ValueCarrying ValueFair Value
Liabilities
Note payable$—  $—  $1,500  $1,501  
Finance lease obligations908  823  1,054  940  
Total liabilities measured at fair value$908  $823  $2,554  $2,441  
Assets and Liabilities Measured at Fair Value on a Recurring Basis
In accordance with the fair value hierarchy described above, the following table shows the fair value of financial assets and liabilities measured at fair value on a recurring basis as of February 29, 2020 and June 1, 2019 (in thousands):
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Total
February 29, 2020Level 1Level 2Level 3Balance
Assets
Municipal bonds$—  $18,996  $—  $18,996  
Corporate bonds—  59,658  —  59,658  
Certificates of deposits—  1,001  —  1,001  
Asset backed securities—  1,208  —  1,208  
Mutual funds2,655  —  —  2,655  
Total assets measured at fair value$2,655  $80,863  $—  $83,518  
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June 1, 2019Level 1Level 2Level 3Balance
Assets
US government and agency obligations$—  $30,974  $—  $30,974  
Municipal bonds—  50,353  —  50,353  
Commercial paper—  9,945  —  9,945  
Corporate bonds—  147,162  —  147,162  
Certificates of deposits—  6,148  —  6,148  
Asset backed securities—  5,599  —  5,599  
Mutual funds3,357  —  —  3,357  
Total assets measured at fair value$3,357  $250,181  $—  $253,538  

Investment securities – available-for-sale have maturities of three months or longer when purchased, and are classified as current, because they are available for current operations. Observable inputs for these securities are yields, credit risks, default rates, and volatility.