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Fair Value Measurement of Assets and Liabilities (Tables)
 12 Months Ended
Dec. 31, 2016
Fair Value Disclosures [Abstract]  
Summary of Financial Instruments, Fair Value on a Recurring Basis
The following table summarizes the Company’s financial instruments measured at fair value on a recurring basis in accordance with the authoritative guidance for fair value measurements as of December 31, 2016 (in thousands):
 
 
Balance as of
December 31, 2016
 
Level 1
Assets:
 
 
 
 
Cash equivalents
 
 
 
 
Money market funds
 
$
35

 
$
35

Total cash equivalents
 
35

 
35

The following table summarizes the Company’s financial instruments measured at fair value on a recurring basis in accordance with the authoritative guidance for fair value measurements as of December 31, 2015 (in thousands):
 
 
Balance as of
December 31, 2015
 
Level 1
Assets:
 
 
 
 
Cash equivalents
 
 
 
 
Money market funds
 
$
35

 
$
35

Total cash equivalents
 
35

 
35

Short-term investments
 
1,267

 
1,267

Total assets at fair value
 
$
1,302

 
$
1,302