Note 8 - Stock-based Compensation (Tables)

6 Months Ended

Mar. 31, 2017

Notes Tables

Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares			Wtd. Avg. Ex. Price
Outstanding at September 30, 2016		570,000		$	2.73
Granted		90,000			1.81
Exercised		–			–
Expired		(10,000	)		3.45
Forfeited		–			–
Outstanding at March 31, 2017		650,000		$	2.59
Exercisable at March 31, 2017		393,334		$	2.79

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Six Months Ended March 31, 2017
Estimated fair value of options at grant date		$63,540
Black-Scholes model assumptions:
Average expected life (years)		6
Average expected volatility factor		36%
Average risk-free interest rate		2.46%
Average expected dividends yield		–

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Six Months Ended March 31, 2017
Fiscal year 2012 grant	$	5,359
Fiscal year 2014 grant	$	13,575
Fiscal year 2016 grant	$	8,111
Fiscal year 2017 grant	$	3,235