Lease (Details 1) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of liabilities:
Operating cash outflow from operating leases	$ 518	$ 509
Right-of-use assets obtained in exchange for lease obligations: Operating leases		$ 205
Weighted-average remaining lease term-finance leases (in years)	1 year 10 months 25 days	2 years 2 months 12 days
Weighted-average remaining lease term-operating leases (in years)	3 years 4 months 24 days	3 years 3 months 19 days
Weighted-average discount rate-finance leases	9.30%	9.10%
Weighted-average discount rate-operating leases	14.30%	14.40%