Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Stockholders' Equity:
Common Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common Stock, shares authorized (in shares)	20,000,000us-gaap_CommonStockSharesAuthorized	20,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, shares outstanding (in shares)	7,309,757us-gaap_CommonStockSharesOutstanding	7,301,657us-gaap_CommonStockSharesOutstanding
Treasury Stock, (in shares)	1,388,078us-gaap_TreasuryStockShares	1,388,078us-gaap_TreasuryStockShares
9.50% Series A Preferred Stock [Member]
Stockholders' Equity:
Cumulative Perpetual Preferred Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Cumulative Perpetual Preferred Stock, coupon rate (in hundredths)	9.50%	9.50%
Cumulative Perpetual Preferred Stock, shares authorized (in shares)	650,000	650,000
Cumulative Perpetual Preferred Stock, shares issued (in shares)	250,000	250,000
Cumulative Perpetual Preferred Stock, shares outstanding (in shares)	250,000	250,000
9.00% Series B Preferred Stock [Member]
Stockholders' Equity:
Cumulative Perpetual Preferred Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Cumulative Perpetual Preferred Stock, coupon rate (in hundredths)	9.00%	9.00%
Cumulative Perpetual Preferred Stock, shares authorized (in shares)	350,000	350,000
Cumulative Perpetual Preferred Stock, shares issued (in shares)	316,250	316,250
Cumulative Perpetual Preferred Stock, shares outstanding (in shares)	316,250	316,250

Face amount or stated value per share of common stock.

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