8. CONCENTRATIONS (Details - Concentration sales)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018
Sales Revenue, Net [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	85.00%	82.90%	83.60%	84.90%
Sales Revenue, Net [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	33.10%	38.30%	44.90%	38.30%
Sales Revenue, Net [Member] | Customer 1 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	29.90%	20.70%	28.70%	24.20%
Sales Revenue, Net [Member] | Customer 1 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	23.20%	14.50%	18.60%	14.50%
Sales Revenue, Net [Member] | Customer 2 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	28.70%	28.20%	30.00%	29.70%
Sales Revenue, Net [Member] | Customer 2 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	7.90%	11.00%	10.50%	11.00%
Sales Revenue, Net [Member] | Customer 3 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	15.30%	25.50%	14.60%	21.40%
Sales Revenue, Net [Member] | Customer 3 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	1.40%	0.90%	11.40%	0.90%
Sales Revenue, Net [Member] | Customer 4 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	11.10%	8.50%	10.30%	9.60%
Sales Revenue, Net [Member] | Customer 4 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk	11.90%	0.60%	4.40%	11.90%
Accounts Receivable [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			86.10%		85.80%
Accounts Receivable [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			49.20%		54.60%
Accounts Receivable [Member] | Customer 1 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			29.50%		29.60%
Accounts Receivable [Member] | Customer 1 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			26.20%		28.20%
Accounts Receivable [Member] | Customer 2 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			23.41%		15.60%
Accounts Receivable [Member] | Customer 2 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			16.40%		0.00%
Accounts Receivable [Member] | Customer 3 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			18.30%		23.60%
Accounts Receivable [Member] | Customer 3 [Member] | Design [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			6.60%		26.40%
Accounts Receivable [Member] | Customer 4 [Member] | Distribution [Member]
Revenue, Major Customer [Line Items]
Concentration Risk			15.20%		17.00%