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v3.19.1

Preferred Stock (Details) |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 20, 2018 | Sep. 29, 2017 shares | Jul. 15, 2014 USD ($) shares | May 12, 2014 USD ($) shares | Apr. 30, 2014 $ / shares shares | Jul. 15, 2014 USD ($) shares | Dec. 31, 2017 USD ($) | Mar. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) 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 |  | 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 |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Equity [Line Items] |  |  |  |  |  |  |  |  |
Shares issued upon conversion | shares |  | 6,857,143 |  |  |  |  |  |  |
Shares post-reverse-split | shares |  | 1,246,753 |  |  |  |  |  |  |

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 + Details
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