Share-Based Compensation and Benefit Plans (Restricted Stock) (Narrative) (Details) - Restricted stock [Member] $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Share-Based Compensation and Benefit Plans
Remaining unrecognized compensation expense	$ 0.9
Weighted-average period for cost recognition	1 month 22 days
Employee [Member]
Share-Based Compensation and Benefit Plans
Restricted stock awards plan description	The Company’s performance incentive plans provide for the award of shares of restricted stock to its corporate and senior management that vest evenly over a three-year period and are held in escrow until such vesting has occurred. Generally, unvested shares are forfeited when an employee ceases employment. The fair value of shares awarded under these plans is based on the closing market price of the Company’s common stock on the date of award and compensation expense is recorded over the minimum required service period.
Director [Member]
Share-Based Compensation and Benefit Plans
Restricted stock awards plan description	The Company’s director stock plan provides for the award of shares of restricted stock to the directors of the Company that vest evenly over a three-year period and are held in escrow until such vesting has occurred. Unvested shares are forfeited when a director ceases their service on the Company’s Board of Directors for reasons other than death or retirement. The fair value of shares awarded under this plan is based on the closing market price of the Company’s common stock on the date of award, and compensation expense is recorded evenly over the vesting period.