Schedule II - Valuation and Qualifying Accounts (Details) - Valuation and Qualifying Accounts (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts:
Balance at Beginning of Year	$ 244	$ 289	$ 337
Bad Debt Expense	145	173	80
Write-offs Net of Recoveries	206	218	128
Balance at End of Year	$ 183	$ 244	$ 289