Note 16 - Stockholders' Equity (Tables)

3 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

										Accumulated
					Additional					Other			Total
	Common Stock				Paid-in		Accumulated			Comprehensive			Stockholders'
	Shares		Amount		Capital		Deficit			Loss			Equity
Balance at September 30, 2019		32,949,987		330	$	89,571,641	$	(53,731,903	)	$	(458,719	)	$	35,381,349
Share-based compensation expense		-		-		158,327		-			-			158,327
Issuance of common stock upon exercise of stock options, net		83,343		1		144,213		-			-			144,214
Issuance of common stock upon vesting of restricted stock units		-		-		-		-			-			-
Other comprehensive income (loss)		-		-		-		-			85,314			85,314
Net income		-		-		-		620,327			-			620,327
Balance at December 31, 20119		33,033,330		331	$	89,874,181	$	(53,111,576	)	$	(373,405	)	$	36,389,531

													Accumulated
							Additional						Other			Total
	Common Stock						Paid-in			Accumulated			Comprehensive			Stockholders'
	Shares			Amount			Capital			Deficit			Loss			Equity
Balance at September 30, 2018		33,176,146		$	332		$	90,251,145		$	(56,516,895	)	$	(245,375	)	$	33,489,207
Share-based compensation expense		-			-			133,845			-			-			133,845
Issuance of common stock upon exercise of stock options, net		1,600			-			2,528			-			-			2,528
Issuance of common stock upon vesting of restricted stock units		-			-			-			-			-			-
Stock buyback		(588,425	)		(6	)		(1,621,016	)		-			-			(1,621,022	)
Other comprehensive loss		-			-			-			-			(54,335	)		(54,335	)
Net income		-			-			-			1,045,940			-			1,045,940
Balance at December 31, 2018		32,589,321		$	326		$	88,766,502		$	(55,470,955	)	$	(299,710	)	$	32,996,163