Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 28,369	$ 3,620
Prepaid expenses	547	23
Total current assets	28,916	3,643
Deferred offering costs		847
Deposits	8
Total assets	28,924	4,490
Current liabilities:
Accounts payable	1,257	531
Accrued liabilities	679	1,617
Convertible notes to related parties		1,795
Convertible notes		4,629
Premium conversion derivative		345
Total current liabilities	1,936	8,917
Total liabilities	1,936	8,917
Series A convertible preferred stock, $0.001 par value; no shares authorized as of September 30, 2016 and 2,325,581 shares authorized as of December 31, 2015, no shares issued or outstanding as of September 30, 2016 and 745,637 shares issued and outstanding as of December 31, 2015, aggregate liquidation preference as of September 30, 2016 and December 31, 2015 of zero and $7,953, respectively.		7,953
Stockholders’ equity (deficit):
Common stock, $0.001 par value; 100,000,000 and 17,674,419 shares authorized as of September 30, 2016 and December 31, 2015, respectively, 9,270,255 and 3,758,488 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively.	17	12
Additional paid‑in capital	46,816
Accumulated deficit	(19,845)	(12,392)
Total stockholders’ equity (deficit)	26,988	(12,380)
Total liabilities, convertible preferred stock and stockholders’ equity (deficit)	$ 28,924	$ 4,490