12. Leases (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lease cost

	Three Months Ended				Nine Months Ended
	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Operating lease cost	$	158	$	134	$	445	$	402
Short-term lease cost		—		6		2		16
Variable lease cost		33		31		96		94
Total lease cost	$	191	$	171	$	543	$	512

Supplemental cash flow information related to leases

	Three Months Ended				Nine Months Ended
	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows (fixed payments)	$	141	$	118	$	384	$	354
Operating cash flows (liability reduction)		102		78		267		234
ROU assets obtained in exchange for lease obligations:
Operating leases		419		—		454		2,840

Other information related to operating leases

	September 30, 2020
Weighted average remaining lease term (in years)		6.20
Weighted average discount rate		5.50	%

Maturity of lease liabilities

	September 30, 2020
Remaining three months of 2020	$	141
2021		687
2022		579
2023		592
2024		604
Thereafter		1,336
Total payments		3,939
Less: imputed interest		614
Total liability	$	3,325