Schedule II - Valuation and Qualifying Accounts (Schedule II: Valuation and Qualifying Accounts)(Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule II - Valuation and Qualifying Accounts [Abstract]
Balance at Beginning of Period	$ 109	$ 78
Charged (Credited) to Costs and Expenses	31	31
Deductions	0	0
Balance at End of Period	$ 140	$ 109