Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions			12 Months Ended
Feb. 11, 2019	Nov. 14, 2018	Dec. 31, 2019
Proceeds from sale of National			$ 13,089
Discontinued Operations [Member] \| National Holdings Corporation "NHC" [Member]
Sale of National, total consideration		$ 22,900
Sale of National, number of shares sold	4	3
Proceeds from sale of National	$ 13,100	$ 9,800
Ownership percentage			0.00%

Equity method investment, number of shares sold

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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- Definition

Amount of the entity's equity method investment which has been sold.

+ References

No definition available.

+ Details

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- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

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