Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]  
Rental Expenses

The following table summarizes total rental expenses recognized on the accompanying consolidated statements of operations (in thousands):

 

 

 

Three Months Ended

June 30,

 

 

Six Months Ended

June 30,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

Office and Equipment Base Rental Expense

 

$

201

 

 

$

194

 

 

$

402

 

 

$

388

 

Office Variable Rental Expense

 

 

182

 

 

 

173

 

 

 

454

 

 

 

335

 

Total Office and Equipment Rental Expense

 

$

383

 

 

$

367

 

 

$

856

 

 

$

723

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Ground Lease Rental Expense

 

$

62

 

 

$

305

 

 

$

178

 

 

$

694

 
Minimum Rental Commitments Less Imputed Interests

The Company’s recorded lease liabilities under all of these operating leases as of June 30, 2019, based on minimum rental commitments less imputed intrest, are as follows (in thousands):

 

 

 

Ground Leases

 

 

Office and

Equipment

Leases

 

 

Total

 

Remainder of 2019

 

$

124

 

 

$

1,045

 

 

$

1,169

 

2020

 

 

247

 

 

 

2,090

 

 

 

2,337

 

2021

 

 

244

 

 

 

2,092

 

 

 

2,336

 

2022

 

 

163

 

 

 

2,099

 

 

 

2,262

 

2023

 

 

142

 

 

 

2,113

 

 

 

2,255

 

Thereafter

 

 

675

 

 

 

6,610

 

 

 

7,285

 

Total

 

 

1,595

 

 

 

16,049

 

 

 

17,644

 

Less: imputed interest

 

 

(263

)

 

 

(9,403

)

 

 

(9,666

)

Total operating lease liabilities

 

$

1,332

 

 

$

6,646

 

 

$

7,978