Condensed Consolidated Balance Sheets - USD ($) $ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
| CURRENT ASSETS: |
|
|
| Cash and cash equivalents (Note 5) |
$ 15,800
|
$ 29,154
|
| Short-term investments (Note 4) |
10,028
|
10,010
|
| Prepaid expenses and other current assets (Note 5) |
782
|
561
|
| Total current assets |
26,610
|
39,725
|
| Property and equipment, net (Note 5) |
397
|
214
|
| Other assets (Note 5) |
3,256
|
626
|
| TOTAL ASSETS |
30,263
|
40,565
|
| CURRENT LIABILITIES: |
|
|
| Accrued liabilities (Note 5) |
2,304
|
1,473
|
| Accounts payable |
1,925
|
622
|
| Total current liabilities |
4,229
|
2,095
|
| Preferred stock warrant liabilities (Note 9) |
10,641
|
1,810
|
| Other liabilities |
113
|
100
|
| TOTAL LIABILITIES |
$ 14,983
|
$ 4,005
|
| Commitments and Contingencies (Note 6) |
|
|
| Preferred stock value |
$ 297,652
|
$ 144,375
|
| STOCKHOLDERS' DEFICIT: |
|
|
| Common stock, $0.001 par value; 180,000,000 shares authorized as of June 30, 2015 and December 31, 2014 and 1,616,514 and 1,588,701 shares issued and outstanding as of June 30, 2015 and December 31, 2014 |
2
|
2
|
| Additional paid-in capital |
0
|
0
|
| Accumulated other comprehensive loss |
|
(10)
|
| Accumulated deficit |
(282,374)
|
(107,807)
|
| TOTAL STOCKHOLDERS' DEFICIT |
(282,372)
|
(107,815)
|
| TOTAL LIABILITIES, CONVERTIBLE AND REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' DEFICIT |
30,263
|
40,565
|
| Convertible Preferred Stock [Member] |
|
|
| CURRENT LIABILITIES: |
|
|
| Preferred stock value |
2,543
|
2,543
|
| Redeemable Convertible Preferred Stock [Member] |
|
|
| CURRENT LIABILITIES: |
|
|
| Preferred stock value |
$ 295,109
|
$ 141,832
|