Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance at	$ 206	$ 183	$ 244
Bad Debt Expense	111	305	145
Write-offs Net of Recoveries	144	282	206
Balance at	$ 173	$ 206	$ 183