Condensed Interim Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Sales	$ 8,535,451	$ 7,709,607	$ 16,160,148	$ 16,139,093
Cost of sales	5,575,213	5,288,498	10,491,989	10,768,445
Gross profit	2,960,238	2,421,109	5,668,159	5,370,648
Operating Expenses
Wages	420,120	493,927	999,475	1,029,360
Administrative salaries and benefits	223,520	193,020	446,010	397,563
Advertising and promotion	45,754	50,325	80,524	115,946
Investor relations and transfer agent fee	23,019	20,084	48,106	38,708
Office and miscellaneous	95,584	74,581	137,703	113,973
Insurance	73,360	86,679	197,818	218,248
Interest expense	51,055	54,650	113,329	156,075
Lease expense	64,215	116,776	130,243	235,244
Consulting	75,579	68,002	148,540	135,313
Professional fees	40,286	57,927	93,975	108,980
Travel	21,310	11,274	32,304	66,636
Telecommunications	10,208	10,506	20,199	22,382
Shipping	2,908	2,736	7,263	7,349
Research	15,947	11,598	34,222	40,176
Commissions	52,482	2,603	57,250	4,961
Currency exchange	25,526	(9,941)	33,826	(67,668)
Utilities	7,843	3,845	10,565	8,150
Total operating expenses	1,248,716	1,248,592	2,591,352	2,631,396
Operating income	1,711,522	1,172,517	3,076,807	2,739,252
PPP loan forgiveness			537,960
Gain on investment	190,268	339,888	399,236	539,417
Interest income	22,147	12,200	32,445	12,614
Income before income tax	1,923,937	1,524,605	4,046,448	3,291,283
Income taxes
Income tax expense	(478,727)	(259,660)	(964,183)	(694,648)
Net income for the period including non-controlling interests	1,445,210	1,264,945	3,082,265	2,596,635
Less: Net income attributable to non-controlling interests	(268,449)	(132,078)	(454,933)	(199,093)
Net income attributable to controlling interest	$ 1,176,761	$ 1,132,867	$ 2,627,332	$ 2,397,542
Income per share (basic)	$ 0.10	$ 0.09
Income per share (diluted)	$ 0.09	$ 0.09
Income per share (basic and diluted)			$ 0.21	$ 0.20
Weighted average number of common shares (basic)	12,304,163	12,240,545	12,315,746	12,239,171
Weighted average number of common shares (diluted)	12,510,281	12,263,698	12,503,371	12,279,100
Other comprehensive income (loss):
Net income	$ 1,445,210	$ 1,264,945	$ 3,082,265	$ 2,596,635
Unrealized gain (loss) on foreign currency translations	37,593	69,062	119,945	(29,866)
Total comprehensive income	1,482,803	1,334,007	3,202,210	2,566,769
Comprehensive income – non-controlling interest	(268,449)	(132,078)	(454,933)	(199,093)
Comprehensive income attributable to Flexible Solutions International Inc.	$ 1,214,354	$ 1,201,929	$ 2,747,277	$ 2,367,676