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Preferred Stock (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 23, 2014 | Dec. 31, 2020 | Dec. 26, 2019
Preferred Stock (Details) [Line Items] |  |  |
Preferred capital offering, description | the Company completed its public offering of 1,500,000 depositary shares, each representing a 1/100th ownership interest in a 6.50 percent Noncumulative Convertible Perpetual Preferred Share, Series A (“Series A Preferred Shares”), of the Company with a liquidation preference of $1,000 per share (equivalent to $10.00 per depositary shares). |  |
Liquidation preference per share | $ 1,000 |  |
Share price | $ 10.00 |  |
Depository shares issued, shares | 1,500,000 |  |
Depository shares issued, value | $ 15,000,000 |  |
Proceeds from issuance of Series A preferred stock | $ 14,000,000 |  |
Conversion of stock, shares converted |  | 990 |
Conversion price |  | $ 0.9908093 |
Common shares conversion price |  |  | $ 10.09276
Underlying series a preferred shares issued and outstanding |  | 1,412,425 |
Conversion of shares |  | $ 1,399,443 |
Conversion of shares, amount |  | $ 18.49 |
Series A Preferred Stock [Member] |  |  |
Preferred Stock (Details) [Line Items] |  |  |
Underlying series a preferred shares issued and outstanding |  | 1,412 |

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