Summplemental Disclosure of Non-cash Financing Activities (Details Textual) - USD ($)	Jun. 30, 2019	Jan. 01, 2019
Operating Lease, Right-of-Use Asset	$ 3,089,000
Operating Lease, Liability, Total	$ 3,128,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 3,455,000
Operating Lease, Liability, Total		$ 3,455,000

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

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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant