12. Leases (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows (fixed payments)	$ 122	$ 118	$ 243	$ 236
Operating cash flows (liability reduction)	83	78	164	156
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 26	$ 0	$ 35	$ 2,840