Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 24,033	$ 3,620
Prepaid expenses	713	23
Total current assets	24,746	3,643
Deferred offering costs		847
Deposits	8
Total assets	24,754	4,490
Current liabilities:
Accounts payable	2,008	531
Accrued liabilities	2,113	1,617
Convertible notes to related parties		1,795
Convertible notes		4,629
Premium conversion derivative		345
Total current liabilities	4,121	8,917
Other liabilities	1
Total liabilities	4,122	8,917
Commitments and contingencies (Note 5)
Series A convertible preferred stock, $0.001 par value; no shares authorized as of December 31, 2016 and 2,325,581 shares authorized as of December 31, 2015, no shares issued or outstanding as of December 31, 2016 and 745,637 shares issued and outstanding as of December 31, 2015, aggregate liquidation preference as of December 31, 2016 and 2015 of zero and $7,953, respectively.		7,953
Stockholders’ equity (deficit):
Preferred stock, $0.001 par value; 10,000,000 shares authorized as of December 31, 2016 and no shares authorized as of December 31, 2015, no shares issued or outstanding as of December 31, 2016 and 2015.
Common stock, $0.001 par value; 100,000,000 and 17,674,419 shares authorized as of December 31, 2016 and 2015, respectively, 9,270,255 and 3,758,488 shares issued and outstanding at December 31, 2016 and 2015, respectively.	17	12
Additional paid in capital	47,674
Accumulated deficit	(27,059)	(12,392)
Total stockholders’ equity (deficit)	20,632	(12,380)
Total liabilities, convertible preferred stock and stockholders’ equity (deficit)	$ 24,754	$ 4,490