ELECTRONIC SYSTEMS TECHNOLOGY, INC. STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (84,487)	$ (9,826)
Noncash items included in net loss:
Depreciation	4,985	6,573
Deferred income taxes		400
Changes in operating assets and liabilities:
Accounts receivable, net	(75,616)	(133,628)
Inventories	108,211	25,971
Accrued interest receivable	3,808	6,284
Prepaid expenses	2,305	1,033
Accounts payable	41,262	5,213
Refundable deposits	(905)
Accrued liabilities	7,172	11,002
NET CASH PROVIDED (USED) IN OPERATING ACTIVITIES	6,735	(86,980)
CASH FLOWS FROM INVESTING ACTIVITIES:
Certificates of deposit redeemed	250,000	452,625
NET CASH PROVIDED FROM INVESTING ACTIVITIES	250,000	452,625
CASH FLOWS USED IN FINANCING ACTIVITIES:
Repurchase of shares	(3,352)	(29,472)
NET CASH USED IN FINANCING ACTIVITIES	(3,352)	(29,472)
NET INCREASE IN CASH AND CASH EQUIVALENTS	253,383	336,173
Cash and cash equivalents at beginning of period	502,971	618,060
Cash and cash equivalents at end of period	$ 756,354	$ 954,233