6. Commitments and Contingencies (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Operating lease expense	$ 114	$ 256	$ 205	$ 502
Sublease income	195		390
Right of use asset	2,100		2,100
Operating lease liability	2,500		2,500
Settlement and contingency related accrual	$ 650		$ 650