Significant Accounting Policies, Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
ASU 2018-11 [Member] | Plan [Member]
RECENT ACCOUNTING PRONOUNCEMENTS [Abstract]
Right to use assets		$ 751
Lease liability		751
ASU 2016-01 [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of net unrealized gains on equity securities			$ 0
Gain on sale of equity investments	$ 24
ASU 2016-01 [Member] | Accumulated Other Comprehensive Loss [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of net unrealized gains on equity securities			(77)	$ (77)
ASU 2016-01 [Member] | Retained Earnings [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of net unrealized gains on equity securities			77	77
ASU 2018-02 [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of the income tax effects of the Tax Cuts and Jobs Act			0
Reclassification of debit card expense for the net presentation of debit card revenue		(711)	(751)
Reclassification of debit card revenue for the net presentation of debit card revenue		$ 711	751
ASU 2018-02 [Member] | Accumulated Other Comprehensive Loss [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of the income tax effects of the Tax Cuts and Jobs Act			(139)	(139)
ASU 2018-02 [Member] | Retained Earnings [Member]
ACCOUNTING STANDARDS ADOPTED IN 2018 [Abstract]
Reclassification of the income tax effects of the Tax Cuts and Jobs Act			$ 139	$ 139