Stock Compensation Plans, Employee Stock Purchase Plan (Details) (2006 Amended Employee Stock Purchase Plan [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
2006 Amended Employee Stock Purchase Plan [Member]
Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Shares authorized under plan (in shares)	322,385
Plan termination date	Mar. 15, 2016
Plan implemented participation period	27 months
Eligibility employment period required for plan participation	90 days
Maximum employee compensation that can be withheld to purchase common stock (in hundredths)	10.00%
Purchase price of stock in percentage for participation (in hundredths)	85.00%
Percentage of eligible employee participating in plan (in hundredths)	49.00%
Current participation period - beginning	Nov. 24, 2014
Current participation period - end	Nov. 23, 2015
Cash contributions to ESPP	$ 83
Shares purchased for award (in shares)	14,009
Weighted average purchase price of shares purchased (in dollars per share)	$ 5.96
Compensation cost related to ESPP	$ 25	$ 45	$ 28