Stockholders' Equity (Details 3) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Oct. 23, 2002
Preferred Stock, Shares Authorized	1,000,000		1,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.10		$ 0.10
Number of shares of outstanding common stock authorized to be repurchased				3,000,000
Purchases made pursuant to repurchase authorization (in shares)	0	0
Number of remaining shares of common stock authorized to be repurchased	1,653,333
Number of common stock shares purchased and retired	73,453	66,829
Amount of common stock purchased and retired	$ 65,000	$ 104,000
Common stock.
Common Stock, Shares Authorized	74,000,000		74,000,000
Common stock, par value (in dollars per share)	$ 0.10		$ 0.10
Class A common stock
Common Stock, Shares Authorized	50,000,000		50,000,000
Common stock, par value (in dollars per share)	$ 0.10		$ 0.10