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Short-Term Borrowing (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Short-term borrowings	$ 10,376	$ 5,095
Short-term borrowings 1
Short-term Debt [Line Items]
Short-term borrowings	0	2,219
Short-term borrowings 2
Short-term Debt [Line Items]
Short-term borrowings	1,590	0
Short-term borrowings 3
Short-term Debt [Line Items]
Short-term borrowings	1,590	0
Short-term borrowings 4
Short-term Debt [Line Items]
Short-term borrowings	2,194	2,111
Short-term borrowings 5
Short-term Debt [Line Items]
Short-term borrowings	1,027	0
Short-term borrowings 6
Short-term Debt [Line Items]
Short-term borrowings	795	765
Short-term borrowings 7
Short-term Debt [Line Items]
Short-term borrowings	1,590	0
Short-term borrowings 8
Short-term Debt [Line Items]
Short-term borrowings	$ 1,590	$ 0

X

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

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+ References

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