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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2019
Fair Value Disclosures [Abstract]  
Schedule of assets and liabilities measured at fair value on recurring basis
The following tables present financial assets and liabilities at March 31, 2019 and December 31, 2018 for which the Company measures fair value on a recurring basis, by level, within the fair value hierarchy:
March 31, 2019
Total
 
Level 1
 
Level 2
 
Level 3
 
Valuation
Technique
Assets
 
 
 
 
 
 
 
 
 
Money market mutual funds
$
25

 
$
25

 
$
—

 
$
—

 
(a)
Liabilities
 
 
 
 
 
 
 
 
 
Interest rate swaps
$
3

 
$
—

 
$
3

 
$
—

 
(b)
December 31, 2018
Total
 
Level 1
 
Level 2
 
Level 3
 
Valuation
Technique
Assets
 
 
 
 
 
 
 
 
 
Money market mutual funds
$
25

 
$
25

 
$
—

 
$
—

 
(a)
Liabilities
 
 
 
 
 
 
 
 
 
Interest rate swaps
$
11

 
$
—

 
$
11

 
$
—

 
(b)