Summary of significant accounting policies (Tables)

6 Months Ended

Jun. 30, 2014

Summary of significant accounting policies

Summary of the entity's revenue by primary revenue source

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Revenue:
Wholesale	$	12,872	$	12,339	$	23,995	$	23,894
Retail subscription	8,161		8,731		16,455		16,798
Retail single-use	2,830		2,830		5,366		5,416
Advertising and other	4,533		2,339		9,032		3,265
Total revenue	$	28,396	$	26,239	$	54,848	$	49,373