Stock Based Compensation (Exercise Price Range) (Details) - Stock Options - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding (in shares)	1,269	1,350	1,792
Weighted Average Remaining Contractual Life (In Years)	6 years 7 months 17 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 1.98	$ 2.02	$ 2.21
Number of Options, Exercisable (in shares)	960	729	411
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 1.99	$ 2.05	$ 2.71
Exercise Price Range 1
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit	0.90
Exercise price range, upper range limit	$ 1.51
Number of Options, Outstanding (in shares)	166
Weighted Average Remaining Contractual Life (In Years)	6 years 10 months 13 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 1.29
Number of Options, Exercisable (in shares)	118
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 1.29
Exercise Price Range 2
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit	1.52
Exercise price range, upper range limit	$ 1.96
Number of Options, Outstanding (in shares)	40
Weighted Average Remaining Contractual Life (In Years)	2 years 11 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 1.67
Number of Options, Exercisable (in shares)	40
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 1.67
Exercise Price Range 3
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit	1.98
Exercise price range, upper range limit	$ 2.05
Number of Options, Outstanding (in shares)	886
Weighted Average Remaining Contractual Life (In Years)	6 years 11 months 27 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 1.98
Number of Options, Exercisable (in shares)	649
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 1.98
Exercise Price Range 4
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit	2.12
Exercise price range, upper range limit	$ 2.60
Number of Options, Outstanding (in shares)	75
Weighted Average Remaining Contractual Life (In Years)	4 years 11 months 12 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 2.28
Number of Options, Exercisable (in shares)	75
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 2.28
Exercise Price Range 5
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit	2.68
Exercise price range, upper range limit	$ 7.68
Number of Options, Outstanding (in shares)	102
Weighted Average Remaining Contractual Life (In Years)	6 years 1 month 24 days
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 3.02
Number of Options, Exercisable (in shares)	78
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 3.02