Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 27,888	$ 17,031
Accounts receivable	1,122	1,391
Inventories	3,458	3,487
Prepaid expenses and other current assets	850	731
Total current assets	33,318	22,640
Property, plant and equipment, net	75,592	76,777
Restricted deposits	2,611	2,611
Deposits and other assets	803	803
Total assets	112,324	102,831
Current liabilities:
Accounts payable and accrued liabilities	6,193	7,476
Current portion of secured debt, net		330
Current Portion of 2017 Notes recorded at fair value	25,769
Derivative warrant liability	2,698	10,493
Total current liabilities	34,660	18,299
Long-term portion of secured debt, net		153
Long Term portion of 2017 Notes recorded at fair value		21,565
2022 Notes, net	8,221	14,341
Other long-term liabilities	179	147
Total liabilities	43,060	54,505
Commitments and Contingencies (see Note 16)
Stockholders' Equity
Common stock, $0.01 par value per share; 250,000,000 authorized; 7,074,246 and 1,080,352 shares issued and outstanding at December 31, 2016 and 2015, respectively. (See Note 2)	71	10
Additional paid-in capital	445,913	387,808
Accumulated deficit	(376,720)	(339,492)
Total stockholders' equity	69,264	48,326
Total liabilities and stockholders' equity	$ 112,324	$ 102,831