Preferred Stock (Details)				2 Months Ended	3 Months Ended	9 Months Ended
	Aug. 20, 2018	Jul. 15, 2014 USD ($) shares	May 12, 2014 USD ($) shares	Jul. 15, 2014 USD ($) shares	Dec. 31, 2017 USD ($) shares	Sep. 30, 2018 USD ($) $ / shares shares
Schedule of Capitalization, Equity [Line Items]
Aggregate value
Share conversion, original shares converted | shares					480,000
Reverse stock split ratio	5.5
Non-Cumulative Convertible Perpetual Preferred Stock Series B [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Preferred stock rate						6.25%
Price per share | $ / shares						$ 25.00
Series B Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Preferred Stock Shares Issued | shares					0	0
Stock conversion, estimated preferred stock dividends eliminated quarterly					$ 187,500
Stock conversion, estimated preferred stock dividends eliminated annually					$ (750,000)
Series B Preferred Stock [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Preferred Stock Shares Issued | shares		480,000	480,000	480,000		480,000
Aggregate value		$ 12,000,000	$ 12,000,000	$ 12,000,000
Expenses for issuance of stock		482,000	482,000
Other offering expenses		$ 149,000	$ 149,000
Proceeds from Issuance of Private Placement				$ 11,369,000
Common Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Shares issued upon conversion | shares					6,857,143
Shares post-reverse-split | shares					1,246,753