Consolidated Balance Sheets (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Equity:
Preferred Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred Stock, shares authorized (in shares)	2,000,000	2,000,000
Common Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common Stock, shares authorized (in shares)	20,000,000	20,000,000
Common Stock, shares outstanding (in shares)	7,333,406	7,301,657
Treasury Stock, (in shares)	1,388,078	1,388,078
9.50% Series A Preferred Stock [Member]
Stockholders' Equity:
Cumulative Perpetual Preferred Stock, coupon rate (in hundredths)	9.50%	9.50%
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, coupon rate (in hundredths)	9.00%	9.00%
Cumulative Perpetual Preferred Stock, shares issued (in shares)	316,250	316,250
Cumulative Perpetual Preferred Stock, shares outstanding (in shares)	316,250	316,250