Interest Rate Swap Derivatives (Details 1) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Interest Rate Swap 1 [Member]
Amount of pre-tax gain (loss) recognized in OCI	$ 471	$ 100
Effective portion reclassified from AOCI into income	(1)	(154)
Interest Rate Swap 2 [Member]
Amount of pre-tax gain (loss) recognized in OCI	907	35
Effective portion reclassified from AOCI into income	(47)	(231)
Interest Rate Swap 3 [Member]
Amount of pre-tax gain (loss) recognized in OCI	1,065	328
Effective portion reclassified from AOCI into income	(40)	(193)
Interest Rate Swap [Member]
Amount of pre-tax gain (loss) recognized in OCI	2,443	463
Effective portion reclassified from AOCI into income	$ (88)	$ (578)

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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