Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 27,756,000	$ 4,778,000
Short-term marketable securities	32,180,000	0
Prepaid expenses and other current assets	581,000	717,000
Total current assets	60,517,000	5,495,000
Property and equipment, net	76,000	41,000
Other assets	143,000	46,000
Total assets	60,736,000	5,582,000
Current liabilities:
Accounts payable	2,639,000	1,940,000
Accrued liabilities	2,649,000	1,006,000
Convertible promissory note		5,444,000
Total current liabilities	5,288,000	8,390,000
Long term debt, net	14,727,000
Warrant liability		885,000
Obligation to issue common stock		1,457,000
Other long term liabilities		2,000
Total liabilities	20,015,000	10,734,000
Commitments and contingencies
Stockholders’ equity (deficit):
Preferred stock, value
Common stock, $0.0001 par value, 200,000,000 and 5,951,487 shares authorized as of December 31, 2016 and 2015, respectively; 8,356,659 and 273,993 shares issued and outstanding as of December 31, 2016 and 2015, respectively	8,000
Additional paid-in capital	117,086,000	1,552,000
Accumulated other comprehensive loss	(15,000)
Accumulated deficit	(76,358,000)	(29,271,000)
Total stockholders’ equity (deficit)	40,721,000	(5,152,000)
Total liabilities and stockholders’ equity (deficit)	$ 60,736,000	5,582,000
Convertible Preferred Stock [Member]
Stockholders’ equity (deficit):
Preferred stock, value		$ 22,567,000