|
Shareholders' Equity (Details) (USD $)
|
12 Months Ended |
1 Months Ended |
|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Mar. 26, 2014
|
Feb. 18, 2016
|
May 30, 2014
|
| Class of Stock [Line Items] |
|
|
|
|
|
|
| Common stock, par value |
$ 2.50 |
$ 2.50 |
|
|
|
|
| Aggregate purchase price of preferred stock sold to treasury |
$ 12,000,000 |
$ 25,000,000 |
|
|
|
|
| Stock Issued During Period, Value, New Issues |
12,510,000 |
|
|
|
|
|
| Number of shares of common stock that may be issued |
15,000,000 |
15,000,000 |
|
|
|
|
| Common stock dividend, shares percentage |
|
5.00% |
|
|
|
|
| Common stock dividend payable date |
Dec. 09, 2014 |
Dec. 10, 2013 |
|
|
|
|
| Common stock dividend, shares |
275,900 |
225,937 |
211,564 |
|
|
|
| Private Placement [Member] |
|
|
|
|
|
|
| Class of Stock [Line Items] |
|
|
|
|
|
|
| Shares issued through private placement |
650,000 |
|
|
|
|
|
| Common stock, par value |
|
|
|
$ 2.50 |
|
|
| Net proceeds from common stock private placement |
|
|
|
12,500,000 |
|
|
| Gross amount of private placement |
|
|
|
13,000,000 |
|
|
| Issuance costs |
|
|
|
500,000 |
|
|
| Series B Preferred Stock [Member] |
|
|
|
|
|
|
| Class of Stock [Line Items] |
|
|
|
|
|
|
| Shares of Preferred Stock Sold to US Treasury |
12,000 |
25,000 |
|
|
|
|
| Liquidation value |
$ 1,000 |
$ 1,000 |
|
|
|
|
| Par value of preferred stock |
$ 2.50 |
$ 2.50 |
|
|
|
|
| Annual dividend rate |
1.00% |
1.00% |
1.54% |
|
|
|
| Preferred Stock, Redemption Amount |
|
|
|
|
|
$ 13,000,000 |
| Scenario, Forecast [Member] | Series B Preferred Stock [Member] |
|
|
|
|
|
|
| Class of Stock [Line Items] |
|
|
|
|
|
|
| Preferred stock, dividend rate, percentage |
|
|
|
|
9.00% |
|
| Quarterly lending incentive fee |
|
|
|
|
0.50% |
|