v3.10.0.1
Condensed Consolidated Balance Sheets - USD ($)
Oct. 31, 2018
Jul. 31, 2018
Current assets    
Cash and cash equivalents $ 19,016,067 $ 3,803,627
Prepaid expenses and other current assets 2,150,966 1,643,749
Investment securities 9,458,814 23,174,447
Total Current Assets 30,625,847 28,621,823
Property and equipment, net 1,204,791 1,265,662
Other long-term assets 346,470 358,987
Total Assets 32,177,108 30,246,472
Current liabilities    
Accounts payable and accrued liabilities 4,169,797 4,778,892
Accrued compensation and related 1,487,579 1,070,744
Total Current Liabilities 5,657,376 5,849,636
Other long-term liabilities 1,322,011 1,472,630
Total Liabilities 6,979,387 7,322,266
Commitments and Contingencies (Note 8)
Stockholders' Equity    
Common stock authorized - 160,000,000 common shares with a par value of $0.0001, common stock issued and outstanding - 59,674,487 and 53,511,626 common shares as of October 31, 2018 and July 31, 2018, respectively 5,968 5,351
Additional paid-in capital 155,585,148 145,744,373
Warrants issued and outstanding - 8,928,905 and 8,958,059 warrants as of October 31, 2018 and July 31, 2018, respectively 11,171,165 11,271,327
Accumulated other comprehensive income (loss) 91,876 (16,024)
Accumulated deficit (141,656,436) (134,080,821)
Total Stockholders' Equity 25,197,721 22,924,206
Total Liabilities and Stockholders' Equity $ 32,177,108 $ 30,246,472

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v3.10.0.1
Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
3 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Income Statement [Abstract]    
Revenue
Expenses:    
Research and development 4,739,445 3,413,151
General and administrative 2,764,089 2,514,037
Loss from operations (7,503,534) (5,927,188)
Other income 114,402 26,736
Foreign currency exchange loss, net (171,914)
Realized loss on sale of securities, net (12,134)
Loss before income taxes (7,573,180) (5,900,452)
Provision for income taxes 2,435
Net loss $ (7,575,615) $ (5,900,452)
Basic and diluted net loss per common share $ (0.14) $ (0.26)
Weighted average shares used in computing basic and diluted net loss per common share 55,194,366 22,318,117

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v3.10.0.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Operating activities    
Net loss $ (7,575,615) $ (5,900,452)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 60,871 96,004
Amortization of (discount)/premium on investments (28,295)
Stock-based compensation 1,391,656 554,575
Common stock issued for services 239,824 109,000
Modification of equity award 135,425
Foreign currency exchange loss, net 171,914
Changes in operating assets and liabilities:    
Prepaid expenses 19,349 142,881
Other current assets (545,936) 58,099
Other long-term assets 3,503 7,383
Accounts payable and accrued liabilities (917,095) (245,050)
Accrued compensation 416,833 93,531
Other long-term liabilities (150,621) 4,167
Net cash used in operating activities (6,778,187) (5,079,862)
Investing activities    
Maturity of investment securities 7,754,000
Sale of investment securities 5,977,794
Net cash provided by investing activities 13,731,794
Financing activities    
Proceeds from issuance of common stock through ESPP 12,671 19,048
Proceeds from issuance of common stock and/or warrants 8,000,000 9,283,443
Payment of financing and offering costs (240,000) (1,008,143)
Proceeds from exercise of options 539,719
Proceeds from exercise of warrants 9,000
Tax withholdings paid on equity awards (15,185)
Tax withholdings paid related to net share settlement of equity awards (24,340)
Tax shares sold to pay for tax withholdings on equity awards 14,649
Net cash provided by financing activities 8,287,514 8,303,348
Effect of exchange rate changes on cash (28,681) (6,744)
Net increase in cash and cash equivalents 15,212,440 3,216,742
Cash and cash equivalents, at beginning of period 3,803,627 11,444,676
Cash and cash equivalents, at end of period 19,016,067 14,661,418
Supplemental disclosure for cash flow information:    
Interest
Income taxes
Noncash investing and financing transactions:    
Expiration of warrants 100,162 535,857
Amounts accrued for offering costs $ 313,189 $ 201,068

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