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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2017
Property Plant And Equipment [Abstract]  
Depreciation and Amortization on Property and Equipment Using the Straight-Line Method

Depreciation on property and equipment is calculated using the straight-line method over the estimated useful lives of the assets, generally two to ten years. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life or the lease term.

 

 

 

December 31,

 

 

December 31,

 

 

 

2017

 

 

2016

 

Office furniture and fixtures

 

$

1,551

 

 

$

1,168

 

Software

 

 

3,068

 

 

 

2,146

 

Equipment

 

 

4,390

 

 

 

4,071

 

Leasehold improvements

 

 

1,720

 

 

 

1,617

 

Gross property and equipment

 

 

10,729

 

 

 

9,002

 

Less accumulated depreciation and amortization

 

 

(6,493

)

 

 

(5,432

)

Property and equipment, net

 

$

4,236

 

 

$

3,570

 

 

Future Minimum Lease Payments under Non-Cancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases are as follows:

 

 

 

Operating

 

Year ending December 31:

 

Leases

 

2018

 

$

992

 

2019

 

 

1,023

 

2020

 

 

848

 

2021

 

 

804

 

2022

 

 

828

 

Thereafter

 

 

1,070

 

Total minimum lease payments

 

$

5,565

 

 

Operating Leases Rent Expense

Rent expense on the operating leases was as follows:

 

 

 

Year Ended

 

 

Year Ended

 

 

Year Ended

 

 

 

December 31,

 

 

December 31,

 

 

December 31,

 

 

 

2017

 

 

2016

 

 

2015

 

Rent expense

 

$

1,312

 

 

$

1,022

 

 

$

1,045