C. STOCKHOLDERS EQUITY (Details 1) - shares	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
Options granted	1,500	0	2,500	500
Options exercised	20,480	0	20,480	0
Options forfeited	1,000	24,193	1,000	24,193
Options expired	1,132	0	1,168	2,400