Consolidated Balance Sheets - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 40,127
|
$ 26,361
|
| Prepaid expenses and other current assets |
1,457
|
696
|
| Total current assets |
41,584
|
27,057
|
| Property and equipment, net |
2,617
|
2,582
|
| Finance and Operating Lease, Right-of-Use Asset |
6,306
|
0
|
| Restricted cash |
6,156
|
|
| Restricted cash |
631
|
316
|
| Other non-current assets |
1,473
|
1,160
|
| Total assets |
52,611
|
31,115
|
| Current liabilities: |
|
|
| Accounts payable |
553
|
1,659
|
| Accrued expenses and other current liabilities |
4,611
|
3,816
|
| Lease liabilities |
1,117
|
0
|
| Current portion of long-term debt |
0
|
5,257
|
| Total current liabilities |
6,281
|
10,732
|
| Non-current liabilities: |
|
|
| Long-term debt, net of current portion |
13,407
|
9,565
|
| Warrant liability |
2,486
|
3,472
|
| Lease liabilities, net of current portion |
5,395
|
0
|
| Other non-current liabilities |
0
|
11
|
| Total liabilities |
27,569
|
23,780
|
| Commitments and contingencies (Note 6) |
|
|
| Stockholders’ equity: |
|
|
| Preferred stock, $0.001 par value; (shares authorized of 25,000,000 at December 31, 2019 and 2018; 1,635 shares issued and outstanding at December 31, 2019 and 2018) |
701
|
701
|
| Common stock, $0.001 par value; (shares authorized of 85,000,000 and 250,000,000 at December 31, 2019 and 2018; 27,452,900 shares issued and outstanding at December 31, 2019 and 10,846,397 shares issued and outstanding at December 31, 2018) |
27
|
11
|
| Additional paid-in capital |
355,268
|
298,627
|
| Accumulated deficit |
(330,954)
|
(292,004)
|
| Total stockholders’ equity |
25,042
|
7,335
|
| Total liabilities and stockholders’ equity |
$ 52,611
|
$ 31,115
|