4. EARNINGS PER SHARE (Details - Earnings per share) - USD ($)	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net income	$ 46,651	$ 151,492
Denominator:
Weighted average shares outstanding - basic	8,760,830	8,621,513
Effect of dilutive securities
Assumed exercise of stock options, treasury stock method	26,404	23,859
Assumed vesting of restricted stock, treasury stock method	108,222	112,356
Dilutive potential common shares	134,626	136,215
Weighted average shares outstanding - diluted	8,895,456	8,757,728
Basic earnings per share	$ 0.01	$ 0.02
Diluted earnings per share	$ 0.01	$ 0.02