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OPERATING LEASE (Tables)
 3 Months Ended
Mar. 31, 2019
Leases [Abstract]  
Components of lease costs

The components of lease costs included in operating expenses in our condensed statements of operations were as follows:

 

 

 

Three Months Ended March 31,

 

(In thousands)

 

2019

 

 

2018

 

Operating lease costs

 

$

173

 

 

$

168

 

Variable lease costs (1)

 

 

2

 

 

 

24

 

Total lease costs

 

$

175

 

 

$

192

 

 

 

(1)

Variable lease costs represent non-lease components, such as common area maintenance charges.
Future minimum payments under operating lease As of March 31, 2019, future minimum payments under the operating lease were as follows (in thousands):

2019

 

$

525

 

2020

 

 

58

 

Total lease payments

 

 

583

 

Less: imputed interest

 

 

(12

)

Total

 

$

571