Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Balance, Beginning	$ 1,589	$ 2,521
Additions	0	0
Amortization	(376)	(932)
Balance, Ending	1,213	1,589
Patents and Other Intangible Asset [Member]
Goodwill [Line Items]
Balance, Beginning	1,489	1,764
Additions	0	0
Amortization	(276)	(275)
Balance, Ending	1,213	1,489
Weighted-average remaining amortization period in years	5 years 8 months 12 days
Proprietary Software [Member]
Goodwill [Line Items]
Balance, Beginning	100	757
Additions	0	0
Amortization	(100)	(657)
Balance, Ending	$ 0	$ 100
Weighted-average remaining amortization period in years	0 years