Significant Accounting Policies (Details) - ASU 2018-02 [Member] $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($)
Accumulated Other Comprehensive Loss [Member]
Recent Accounting Pronouncements [Abstract]
Reclassification of stranded tax effects related to TCJA	$ (721)
Retained Earnings [Member]
Recent Accounting Pronouncements [Abstract]
Reclassification of stranded tax effects related to TCJA	$ 721

Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL116659650-108580

Name:	us-gaap_TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration