Shareholders' Equity, Stock Plans and Preferred Stock (Schedule of Weighted Average Grant Date Fair Value and Total Intrinsic Value of Exercises) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted average grant date fair value	$ 0.00	[1]	$ 0.00	[1]	$ 2.29
Total intrinsic value of exercises	$ 126	[1]	$ 53	[1]	$ 12

[1] The Company did not issue any options or other equity grants that would require application of the Black-Scholes-Merton equity grant valuation model during the years ended December 31, 2014 and 2013. All equity grants during these periods were restricted common shares which are valued using an intrinsic valuation method based on market price.