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Summary of Significant Accounting Policies (Schedule of consolidated balance sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Operating leases right-of-use	$ 3,783
Prepaid expenses	553	$ 884
Operating lease liabilities	$ (3,783)
According to the previous accounting policy [Member]
Operating leases right-of-use
Prepaid expenses		90
Operating lease liabilities
The change [Member]
Operating leases right-of-use		3,424
Prepaid expenses		(90)
Operating lease liabilities		(3,334)
As presented according to Topic 842 [Member]
Operating leases right-of-use		3,424
Prepaid expenses
Operating lease liabilities		$ (3,334)

X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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X

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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-SubTopic 20
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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

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-Section 05
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