Stock-based compensation (Tables)

9 Months Ended

Sep. 30, 2015

	Number of shares available for grant			Total options outstanding			Weighted Average Exercise Price		Aggregate Intrinsic Value
Balance at January 1, 2015		32,863			19,600		$	0.10	$	10,584
Increase in authorized options		50,000
Exercised		-			(162	)		0.12
Granted		(5,220	)		5,220			1.07
Cancelled		44			(44	)		0.11
Balance at September 30, 2015		77,687			24,614		$	0.31	$	8,234