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Note 1 - Presentation of Interim Information (Detail) (USD $)
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3 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended | 3 Months Ended | ||||||
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Feb. 28, 2013
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Aug. 31, 2012
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Feb. 29, 2012
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Feb. 28, 2013
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Feb. 29, 2012
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Mar. 31, 2013
Subsequent Event [Member]
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Feb. 28, 2013
County Tap And Construction Fee Deferred Revenue [Member]
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Aug. 31, 2011
Deferred O And G Lease Revenue [Member]
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Feb. 29, 2012
Common Share Equivalents [Member]
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Feb. 28, 2013
Tap Fees [Member]
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Feb. 29, 2012
Tap Fees [Member]
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| Unrealized Gain on Securities | $ 56 | $ 56 | |||||||||
| Unrealized Loss on Securities | 1,081 | ||||||||||
| Increase (Decrease) in Notes Payable, Current | 5,800,000 | 5,800,000 | 385,100 | ||||||||
| Notes Payable | 9,600,000 | 9,600,000 | |||||||||
| Repayments of Notes Payable | 806,097 | 887,400 | |||||||||
| Note Payable Term | 5 years | ||||||||||
| Debt Instrument, Interest Rate, Stated Percentage | 5.00% | ||||||||||
| Interest Expense, Other | 650,107 | 862,400 | 1,544,755 | 1,713,800 | 650,100 | 862,400 | |||||
| Recognition Of Deferred Water Tap Fees | 3,574 | 3,574 | 7,147 | 7,148 | |||||||
| Recognition Of Deferred Construction Funding | 10,377 | 10,377 | 20,754 | 20,754 | |||||||
| Deferred Revenue | 1,300,000 | 1,243,400 | |||||||||
| Allowance for Doubtful Accounts Receivable, Current | 41,000 | 20,000 | 41,000 | ||||||||
| Royalty Revenue | 103,600 | 103,600 | 207,200 | 207,200 | |||||||
| Deferred Revenue, Leases, Net | 431,800 | 431,800 | |||||||||
| Share-based Compensation | $ 12,500 | $ 21,400 | $ 23,050 | $ 40,115 | |||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares) | 247,600 | 275,100 | |||||||||
| X | ||||||||||
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- Definition
Note Payable Term No definition available.
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| X | ||||||||||
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- Definition
The amount of previously reported deferred or unearned revenue related to construction funding that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. No definition available.
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| X | ||||||||||
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- Definition
The amount of previously reported deferred or unearned revenue related to water taps sold that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. No definition available.
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| X | ||||||||||
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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents revenue received, but not recognized for financial reporting purposes. Such deferred revenue may consist of and include amounts paid in advance by lessees and is net of the accumulated amortization of such amounts that to date have been recognized in revenue. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in current portion (due within one year or one business cycle) of obligations evidenced by formal promissory notes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for a borrowing supported by a written promise to pay an obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease), resulting in a gain, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period. No definition available.
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| X | ||||||||||
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- Definition
The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period. No definition available.
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