Byrna Technologies Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION AND WARRANTS (Narrative) (Details)

STOCK BASED COMPENSATION AND WARRANTS (Narrative) (Details)			1 Months Ended									9 Months Ended
	Dec. 03, 2018 USD ($) shares	Apr. 13, 2018 USD ($) trigger_price $ / shares shares	Jul. 22, 2019 USD ($) $ / shares shares	May 21, 2019 USD ($) $ / shares $ / shares	May 21, 2019 USD ($) $ / shares shares	May 20, 2019 shares	Apr. 22, 2019 USD ($) $ / shares shares	Oct. 22, 2018 USD ($) $ / shares $ / shares shares	Oct. 22, 2018 USD ($) $ / shares shares	Mar. 27, 2017 USD ($) $ / shares shares	Mar. 27, 2017 USD ($) $ / shares shares	Aug. 31, 2019 USD ($) shares	Mar. 21, 2019 shares	Nov. 30, 2018 USD ($) shares	Dec. 19, 2017 shares	Oct. 06, 2017 shares	Oct. 05, 2017 shares	May 31, 2013 shares
Common Stock, Shares Authorized												300,000,000	300,000,000	300,000,000		200,000,000	100,000,000
Warrants Issued During Period, Value \| $												$ 1,926,525
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures		1,500,000
Stock-based compensation cost expensed during the year \| $												12,681
Unvested stock-based compensation expense \| $														$ 40,159
Number of warrant issued	750,000
Warrant [Member]
Stock-based compensation cost expensed during the year \| $	$ 164,230
Unvested stock-based compensation expense \| $	$ 29,860
Expected life	3 years		4 years 6 months			4 years 6 months	4 years 6 months		5 years
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures									650,000	1,150,000	1,150,000
Options granted during the year, weighted average exercise price \| (per share)										$ 0.13	$ 0.10
Stock-based compensation cost expensed during the year \| $		$ 10,568			$ 14,621				$ 79,185
Unvested stock-based compensation expense \| $		$ 40,159								$ 39,046	$ 39,046	$ 57,337
Expected life		7 years			5 years				5 years
Market price of the Company's common stock on date of grant of options \| $ / shares		$ 0.15		$ 0.14	$ 0.14			$ 0.14	$ 0.14
Share-based Payment Arrangement, Option [Member] \| Chief Technology Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures		1,500,000
Options granted during the year, weighted average exercise price \| $ / shares		$ 0.16
Share-based Payment Arrangement, Option [Member] \| Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures									400,000
Options granted during the year, weighted average exercise price \| (per share)								$ 0.19	$ 0.14
Share-based Payment Arrangement, Option [Member] \| Consultant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures									250,000
Options granted during the year, weighted average exercise price \| (per share)								$ 0.19	$ 0.14
Share-based Payment Arrangement, Option [Member] \| Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures					120,000
Options granted during the year, weighted average exercise price \| (per share)				$ 0.19	$ 0.14
Securities purchase agreement [Member] \| Accredited investors [Member] \| Warrant [Member]
Number of warrants outstanding \| $							$ 2,080,265	$ 1,275,000	$ 1,275,000
Price per unit of warrants outstanding \| $ / shares							$ 1,000	$ 1,000	$ 1,000
Conversion price \| $ / shares							$ 0.15	$ 0.15	$ 0.15
Warrants outstanding								4,000	4,000
Number of securities called by each warrant						1	1	1	1
Number of warrant issued							8,321,058		5,100,000
Class of warrant or right grant date fair value \| $							$ 888,444	$ 524,089	$ 524,089
Securities Purchase Agreement Two [Member] \| Accredited investors [Member] \| Warrant [Member]
Number of warrants outstanding \| $			$ 2,282,500
Price per unit of warrants outstanding \| $ / shares			$ 1,000
Debt conversion interest rate			1000.00%
Conversion price \| $ / shares			$ 0.15
Number of securities called by each warrant			1
Number of warrant issued			9,130,000
Class of warrant or right grant date fair value \| $			$ 1,038,081
2013 Stock Option Plan [Member]
Common Stock, Shares Authorized																		9,379,857
Revised Stock Option Plan [Member]
Common Stock, Shares Authorized															18,993,274
Batch of 500,000 options 1 [Member] \| Chief Technology Officer [Member]
Stock option, trigger price \| trigger_price		0.30
Batch of 500,000 options 2 [Member] \| Chief Technology Officer [Member]
Stock option, trigger price \| trigger_price		0.50
Batch of 500,000 options 3 [Member] \| Chief Technology Officer [Member]
Stock option, trigger price \| trigger_price		1.00