Segment Reporting and Geographic Information (Details) - Net sales by geographic region (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 10,341	$ 11,579
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	6,347	5,414
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	3,122	5,027
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	872	1,138
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 3,994	$ 6,165