13. Goodwil (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 13, 2017
Goodwill	$ 651	$ 683	$ 0
Impairment charges on goodwill	0	0	$ 65,223
Heliostixio [Member]
Goodwill	$ 651	$ 683		$ 683

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration