Basis of Presentation and Accounting Policy Deferred Revenue (Tables)

9 Months Ended

Sep. 30, 2014

Deferred Revenue [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

Deferred revenues, included in other current liabilities, for the nine months ended September 30 were as follows (in thousands):

	2014		2013
Balance at beginning of period	$	6,592	$	6,592
Revenues deferred during the period	202		—
Balance at end of period	$	6,794	$	6,592