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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Cash flows from operating activities |  |  |
Net income (loss) | $ 414,680 | $ (1,710,868) | $ (1,310,607)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Share-based compensation expense | 324,840 | 233,245 | 219,886
Depreciation, depletion and other non-cash items | 902,676 | 734,324 | 420,104
Bad debt expense | 79,860 | 0 | 0
Investment in Well Enhancement Recovery Systems, LLC | 10,490 | 10,488 | 10,675
Interest income and other non-cash items | (2,366) | (14,647) | (41,114)
Interest added to receivable from related parties | (17,728) | (34,755) | (29,099)
Changes in operating assets and liabilities: |  |  |
Inventories | (1,217,292) | 0 | 0
Trade accounts receivable | (369,923) | (482,756) | (23,161)
Prepaid expenses | (959,394) | (152,281) | (122,733)
Note receivable - related parties | (110,161) | (156,743) | (31,633)
Accounts payable and accrued liabilities | 750,078 | 477,538 | (269,428)
Income taxes | (282,000) | 0 | (292,729)
Deferred revenue | 360,611 | (55,803) | (55,802)
Deferred income - oil and gas lease | 116,111 | (19,000) | (360,765)
Net cash provided by (used in) operating activities from continuing operations | 482 | (1,171,258) | (1,886,406)
Net cash provided by operating activities from discontinued operations | 0 | 118,379 | 1,615,677
Net cash provided by (used in) operating activities | 482 | (1,052,879) | (270,729)
Cash flows from investing activities: |  |  |
Investments in water, water systems and land | (1,046,911) | (2,486,403) | (1,209,416)
Investments in Sky Ranch pipeline | (241,819) | (4,368,196) | 0
Investments in Sky Ranch land development | (3,977,767) | (902,600) | 0
Sales and maturities of marketable securities | 34,057,552 | 9,786,406 | 2,840,000
Purchase of short-term investments | (22,645,017) | 0 | (25,970,721)
Purchase of long-term investments | 0 | 0 | (6,855,189)
Purchase of property and equipment | (445,286) | (95,385) | (472,310)
Net cash provided by (used in) investing activities from continuing operations | 5,700,752 | 1,933,822 | (31,667,636)
Net cash provided by (used in) investing activities from discontinued operations | 0 | 0 | (451,347)
Net cash provided by (used in) investing activities | 5,700,752 | 1,933,822 | (32,118,983)
Cash flows from financing activities |  |  |
Proceeds from note receivable - related parties | 215,504 | 0 | 0
Proceeds from exercise of options | 75,000 | 0 | 0
Payment to contingent liability holders | (2,523) | (2,408) | (2,041)
Net cash provided (used in) by financing activities from continuing operations | 287,981 | (2,408) | (2,041)
Net cash provided (used) in financing activities from discontinued operations | 0 | 0 | 0
Net cash provided (used) in financing activities | 287,981 | (2,408) | (2,041)
Net change in cash and cash equivalents | 5,989,215 | 878,535 | (32,391,753)
Cash and cash equivalents - beginning of year | 5,575,823 | 4,697,288 | 37,089,041
Cash and cash equivalents - end of year | 11,565,038 | 5,575,823 | 4,697,288
SUPPLEMENTAL DISCLOSURES OF NON-CASH ACTIVITIES |  |  |
Retirement of collateral stock | 0 | 0 | 1,407,000
Transfer of prepaid asset to other asset | 89,609 | 0 | 0
Transfer of land and development costs to inventory | $ 3,977,767 | $ 0 | $ 0

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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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