XML 16 R5.htm IDEA: XBRL DOCUMENT v3.19.2
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Cash flows from operating activities:    
Net loss $ (14,736) $ (12,003)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 132 130
Amortization of debt discount and issuance costs 2,031 1,986
Interest expense added to loan principal 4,978 4,771
Interest expense added to lease liability 622 543
Loss on debt conversion 27 57
Debt conversion expense 197
Compensation charge for stock and share option awards 245 227
Unrealized gain on warrant derivative liabilities (859)
Changes in operating assets and liabilities:    
Accounts receivable (70) (70)
Prepaid expenses and other current assets (164) (193)
Other assets (243) 16
Accounts payable 668 114
Accrued liabilities (559) (1,138)
Net cash used in operating activities (6,872) (6,419)
Cash flows from investing activities:    
Additions to property, plant and equipment and water programs (818) (927)
Net cash used in investing activities (818) (927)
Cash flows from financing activities:    
Net proceeds from issuance of stock 14,642 14,581
Principal payments on long-term debt (29) (28)
Net cash provided by financing activities 14,613 14,553
Net increase in cash, cash equivalents and restricted cash 6,923 7,207
Cash, cash equivalents and restricted cash, beginning of period 12,691 13,163
Cash, cash equivalents and restricted cash, end of period $ 19,614 $ 20,370