12.

Leases

Our operating leases are primarily related to our Bothell, Washington headquarters space lease. The term of our lease continues until

July 31, 2021

with

two

options to extend the term of the lease, each of which is for an additional period of

five

years, with the

first

extension term commencing, if at all, on

August 1, 2021,

and the

second

extension term commencing, if at all, immediately following the expiration of the

first

extension term. We have

not

included these extension options in our ROU assets or lease liabilities as we are reasonably certain we will

not

enter into the renewal option in their current terms. Our financing lease is related to research equipment. We used a weighted average discount rate of

6.5%,

our market collateralized borrowing rate, and

8.1%,

the weighted average implied interest on our leases, to determine our operating and financing lease liabilities, respectively. The weighted average remaining term of our operating and financing leases are

2.0

years and

1.7

years, respectively. The operating lease costs and cash paid in the

three

months ended

June 30, 2019

was

$142,000

and

$186,000,

respectively. The operating lease costs and cash paid in the

six

months ended

June 30, 2019

was

$285,000

and

$371,000,

respectively.

Maturities of lease liabilities as of

June 30, 2019

(In thousands)	Operating Leases			Financing Leases
2019 (less than one year)	$	362		$	7
2020		764			15
2021		452			3
Total lease payments		1,578			25
Less: interest		(107	)		(2	)
Total present value of lease liabilities	$	1,471		$	23