Note 11 - Summary of Changes in Stockholders' Equity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 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			456,279
Repurchase of common stock			(1,748,445)
Balances	86,315,868		86,315,868
Retained Earnings [Member]
Balances			(49,658,850)
Common stock cash dividends			(954,650)
Net (loss) income			(767,814)
Balances	(51,381,314)		(51,381,314)
AOCI Attributable to Parent [Member]
Balances			(301)
Other comprehensive income			253
Balances	(48)		(48)
Balances			37,949,212
Share-based compensation expense			$ 456,279
Repurchase of common stock (in shares)			(1,099,608)
Repurchase of common stock			$ (1,748,456)
Common stock cash dividends	(317,989)		(954,650)
Other comprehensive income	781	$ 701	252	$ 397
Net (loss) income	276,922	$ (63,947)	(767,814)	$ 732,198
Balances	$ 34,934,824		$ 34,934,824