12. Leases (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 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
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 419	$ 0	$ 454	$ 2,840