Income Taxes (Details) - The unrecognized tax benefits activity - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
The unrecognized tax benefits activity [Abstract]
Unrecognized tax benefits balance at January 1	$ 307	$ 309
Gross increases in tax positions of prior years	164
Lapse of statute of limitations		(2)
Unrecognized tax benefits balance at December 31	$ 471	$ 307

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

+ Details

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

+ Details

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

+ Details

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