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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2016 | Jan. 31, 2015 | Apr. 30, 2015 | Apr. 30, 2014
Operating activities: |  |  |  |
Net loss | $ (7,872) | $ (9,463) | $ (13,140) | $ (7,406)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
Stock-based compensation expense | 2,090 | 2,284 | 3,162 | 2,807
Net foreign currency remeasurement loss |  |  | 0 | 124
Depreciation expense | 114 | 166 | 214 | 213
Provision for bad debts | 33 | 0 |  |
Change in fair value of warrant liability | 0 | (1,401) | (981) | 965
Modification of warrant liability |  |  | 586 | 0
Gain/loss on sales of assets |  |  | 5 | 0
Changes in operating assets and liabilities: |  |  |  |
Accounts receivable | (1,078) | 233 | 265 | (825)
Prepaid expenses and other current assets | (68) | 125 | 37 | (68)
Restricted cash | 13 | 2 | 2 | 27
Accounts payable | 101 | 381 | 433 | (223)
Accrued liabilities | (116) | (167) | (232) | (24)
Other non-current liability | 64 | 0 | 100 | 0
Deferred revenue | 866 | 218 | (82) | 977
Net cash used in operating activities | (5,853) | (7,622) | (9,630) | (3,433)
Investing activities: |  |  |  |
Purchase of property and equipment | (176) | (84) | (119) | (234)
Proceeds from sale of fixed assets |  |  | 5 | 0
Net cash used in investing activities | (176) | (84) | (114) | (234)
Financing activities: |  |  |  |
Private placement financing, net of financing costs of $880k |  |  | 11,220 | 0
Proceeds from executive note financing | 0 | 2,000 | 2,000 | 0
Payment of issuance costs related to March 2015 Private Placement | (18) | 0 |  |
Capital lease payments | (17) | (5) | (12) | 0
Proceeds from exercise of options | 0 | 2 | 2 | 21
Net cash (used in)/provided by financing activities | (35) | 1,997 | 13,210 | 21
Exchange rate effect on cash and cash equivalents |  |  | 0 | (24)
Decrease in cash and cash equivalents | (6,064) | (5,709) | 3,466 | (3,670)
Cash and cash equivalents, beginning of period | 9,357 | 5,891 | 5,891 | 9,561
Cash and cash equivalents, end of period | 3,293 | 182 | 9,357 | 5,891
Non-cash investing activities: |  |  |  |
Purchase equipment under capital lease | $ 0 | $ 124 | 124 | 0
Conversion of executive note financing |  |  | 2,000 | 0
Reclassification of warrant liability to equity |  |  | $ 1,616 | $ 0

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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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