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Note 11 - Summary of Changes in Stockholders' Equity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Common Stock [Member]
Balances (in shares)			32,898,461
Balances			$ 329
Repurchase of common stock (in shares)			(1,099,608)
Repurchase of common stock			$ (11)
Balances (in shares)	31,798,853		31,798,853
Balances	$ 318		$ 318
Additional Paid-in Capital [Member]
Balances			87,608,034
Share-based compensation expense			308,257
Repurchase of common stock			(1,748,445)
Balances	86,167,846		86,167,846
Retained Earnings [Member]
Balances			(49,658,850)
Common stock cash dividends			(636,661)
Net (loss) income			(1,044,736)
Balances	(51,340,247)		(51,340,247)
AOCI Attributable to Parent [Member]
Balances			(301)
Other comprehensive income			(528)
Balances	(829)		(829)
Balances			37,949,212
Share-based compensation expense			$ 308,257
Repurchase of common stock (in shares)			(1,099,608)
Repurchase of common stock			$ (1,748,456)
Common stock cash dividends	(317,988)	$ 0	(636,661)	$ 0
Other comprehensive income	3,679	308	(529)	1,098
Net (loss) income	(664,663)	$ 290,511	(1,044,736)	$ 796,145
Balances	$ 34,827,088		$ 34,827,088

X

- Definition

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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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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- Definition

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

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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- Definition

Number of shares issued which are neither cancelled nor held in the treasury.

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No definition available.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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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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