Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2013

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

	Balance at Beginning of Year		Bad Debt Expense		Write-offs Net of Recoveries		Balance at End of Year
Allowance for doubtful accounts:
Year Ended December 31, 2011		337		80		128		289
Year Ended December 31, 2012		289		173		218		244
Year Ended December 31, 2013		244		145		206		183