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CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) | 9 Months Ended
--- | ---
May 31, 2018 | May 31, 2017
Cash flows from operating activities: |  |
Net income (loss) | $ 58,153 | $ (1,209,680)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and depletion | 559,975 | 405,167
Equity loss in Well Enhancement Recovery Systems, LLC | 7,847 | 7,652
Share-based compensation expense | 241,209 | 168,034
Interest income and other non-cash items | (867) | (26,641)
Interest added to receivable from related parties | (46,377) | (18,316)
Changes in operating assets and liabilities: |  |
Trade accounts receivable | (554,489) | 119,452
Prepaid expenses | (926,917) | (164,626)
Inventories | (382,554) | 0
Notes receivable - related parties | (62,611) | (86,818)
Notes receivable | (172,698) | 0
Accounts payable and accrued liabilities | (224,901) | (90,322)
Deferred revenues | 0 | (41,852)
Deferred oil & gas lease payment | 130,044 | (18,000)
Net cash used in operating activities from continuing operations | (1,374,186) | (955,950)
Net cash provided by operating activities from discontinued operations | 17,914 | 116,706
Net cash used in operating activities | (1,356,272) | (839,244)
Cash flows from investing activities: |  |
Sale of short-term investments, net | 3,118,962 | 8,366,614
Issuance of note receivable - related parties | (1,490,000) | 0
Investments in water, water systems, and land | (2,989,567) | (6,397,763)
Purchase of property and equipment | (271,146) | (77,242)
Net cash (used in) provided by investing activities | (1,631,751) | 1,891,609
Cash flows from financing activities: |  |
Proceeds from note receivable - related parties | 215,504 | 0
Proceeds from the issuance of stock | 75,000 | 0
Payments to contingent liability holders | (2,152) | (2,102)
Net cash provided by (used in) financing activities | 288,352 | (2,102)
Net change in cash and cash equivalents | (2,699,671) | 1,050,263
Cash and cash equivalents - beginning of period | 5,575,823 | 4,697,288
Cash and cash equivalents - end of period | 2,876,152 | 5,747,551
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITIES |  |
Investment in water assets through accounts payable | 0 | 210,889
Transfer of prepaid asset to other asset | 89,609 | 0
Transfer of land and mineral interest to inventory | $ 1,691,989 | $ 0

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowElementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration