Fair Value Measurements (Details Narrative) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Short term investment		$ 700
Clinton Lighthouse Equity Strategies Fund (Offshore) Ltd [Member]
Short term investment	0	$ 400
GBAM Managed Investment Fund [Member]
Short term investment	$ 0

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant