Common stock and redeemable convertible preferred stock (Tables)

6 Months Ended

Jun. 30, 2015

Common stock and redeemable convertible preferred stock

Summary of authorized, issued and outstanding shares by class of stock

	June 30, 2015		December 31, 2014
		Issued and		Issued and
	Authorized	Outstanding	Authorized	Outstanding
	Shares	Shares	Shares	Shares
Common Stock	35,000,000	887,414	35,000,000	938,859
Series A Preferred Stock	1,170,000	1,170,000	1,170,000	1,170,000
Series B Preferred Stock	4,000,000	3,113,099	4,000,000	3,113,099
Series B-1 Preferred Stock	8,830,000	5,461,802	8,830,000	5,461,802
Series C Preferred Stock	13,500,000	11,528,483	13,500,000	8,753,547
Total Shares Issued		22,160,798		19,437,307
Treasury Stock		0		(55,905	)
Total Outstanding Shares		22,160,798		19,381,402
Total Authorized Shares	62,500,000		62,500,000