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Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2013 (in Shares)			32,900,705
Balances, September 30, 2013			$ 329
Balances, September 30, 2013			(62,673,754)
Balances, September 30, 2013			24,761,409
Balances, September 30, 2013			87,434,834
Issuance of common stock upon exercise of stock options, net (in Shares)			357,476
Issuance of common stock upon exercise of stock options, net			193,064
Share-based compensation expense			341,422	390,303
Repurchase of common stock			(248,957)
Net income	525,926	(459,378)	657,489	(559,754)
Balances, March 31, 2014 (in Shares)	33,205,373		33,205,373
Balances, March 31, 2014	331		331
Balances, March 31, 2014	87,720,361		87,720,361
Balances, March 31, 2014	(62,016,265)		(62,016,265)
Balances, March 31, 2014	25,704,427		25,704,427
Common Stock [Member]
Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2013 (in Shares)			32,900,705
Balances, September 30, 2013			329
Issuance of common stock upon exercise of stock options, net (in Shares)			357,476
Issuance of common stock upon exercise of stock options, net			4
Repurchase of common stock (in Shares)			(133,073)
Repurchase of common stock			(2)
Balances, March 31, 2014 (in Shares)	33,125,108		33,125,108
Balances, March 31, 2014	331		331
Additional Paid-in Capital [Member]
Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2013			87,434,834
Issuance of common stock upon exercise of stock options, net			193,060
Share-based compensation expense			341,422
Repurchase of common stock			(248,955)
Balances, March 31, 2014	87,720,361		87,720,361
Retained Earnings [Member]
Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2013			(62,673,754)
Net income			657,489
Balances, March 31, 2014	$ (62,016,265)		$ (62,016,265)

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Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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Amount of other increase (decrease) in additional paid in capital (APIC).

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Changes in additional paid in capital related to exercise of share-based payments awards (such as stock options) and the amount of recognized equity-based compensation during the period (such as nonvested shares).

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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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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.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Number of share options (or share units) exercised during the current period.

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Value of stock issued as a result of the exercise of stock options.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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