COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Significant customer concentrations as a percentage of total accounts receivable) (Details) - Accounts Receivable [Member] - Customer Concentration Risk [Member]		3 Months Ended
		Dec. 28, 2019	Dec. 29, 2018
Xinye(HK) Electronics.Co [Member]
Concentration Risk [Line Items]
Customer concentrations risk percentage	[1]	14.10%
Forehope Electronic (Ningbo) Co Ltd [Member]
Concentration Risk [Line Items]
Customer concentrations risk percentage		14.00%
Super Power International [Member]
Concentration Risk [Line Items]
Customer concentrations risk percentage	[1]	10.40%	15.40%
Micron Technology, Inc [Member] [Member]
Concentration Risk [Line Items]
Customer concentrations risk percentage			17.70%
Haoseng Industrial Company Limited [Member]
Concentration Risk [Line Items]
Customer concentrations risk percentage	[1]		15.50%

[1] Distributor of the Company's products.