12. Leases (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Lease cost

	Three Months Ended
	March 31, 2021		March 31, 2020
Operating lease cost	$	166	$	143
Short-term lease cost		—		2
Variable lease cost		32		32
Total lease cost	$	198	$	177

Supplemental cash flow information related to leases

	Three Months Ended
	March 31, 2021		March 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows (fixed payments)	$	211	$	122
Operating cash flows (liability reduction)		171		82
ROU assets obtained in exchange for lease obligations:
Operating leases		14		9

Other information related to operating leases

	March 31, 2021
Weighted average remaining lease term (in years)		5.93
Weighted average discount rate		5.50	%

Maturity of lease liabilities

	March 31, 2021
Remaining nine months of 2021	$	428
2022		582
2023		594
2024		607
2025		618
Thereafter		722
Total payments		3,551
Less: imputed interest		(526	)
Total liability	$	3,025