Segment Reporting and Geographic Information (Details) - Net sales by geographic region (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 9,311	$ 13,309	$ 32,563	$ 37,419
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	5,972	6,450	17,068	18,124
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	2,413	5,794	12,129	15,477
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	926	1,065	3,366	3,818
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 3,339	$ 6,859	$ 15,495	$ 19,295