Equity Incentive Plans (Nonvested Stock Option Activity) (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, beginning balance, shares	476
Granted, shares	0
Vested, shares	(200)
Forfeited, shares	(10)
Options outstanding, ending balance, shares	266	476
Options non vested, Wtd. avg. grant date fair value beginning balance	$ 8.89
Granted, Wtd. Avg. grant date fair value	$ 0.00	$ 6.81	$ 9.75
Vested, Wtd. Avg. grant date fair value	$ 6.95
Forfeited, Wtd. Avg. grant date fair value	$ 8.61
Options non vested, Wtd. avg. grant date fair value ending balance	$ 10.36	$ 8.89
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to awards	$ 1.3
Expected weighted average period to recognize expense	1 year 6 months