SHARE-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Stock option activity

				Weighted Average
	Options on					Remaining		Aggregate
	Common			Exercise		Contractual		Intrinsic
	Shares			Price		Term		Value
Outstanding December 31, 2020		3,931,586		$	4.41		4.80
Granted		577,500		$	5.28
Exercised		(75,000	)	$	1.50
Forfeited, cancelled, expired		(10,000	)	$	5.42
Outstanding March 31, 2021		4,424,086		$	4.57		5.39	$	5,533,110
Exercisable March 31, 2021		2,116,917		$	2.86		2.49	$	5,181,463

Assumptions used to to determine the fair value of the options granted

	For the Three Months
	Ended March 31,
	2021			2020
Expected stock price volatility		50	%		n/a
Risk-free interest rate		0.89	%		n/a
Forfeiture rate		0	%		n/a
Expected dividend yield		0	%		n/a
Expected life of options - years		5.70			n/a
Weighted-average fair value of options granted	$	2.42			n/a

Service-based RSU activity

				Weighted Average		Weighted Average
	Service-Based			Grant Date		Vesting
	RSU's			Fair Value		Period
Unvested at December 31, 2020		428,006		$	6.13
Granted - service based		37,500		$	5.38
Vested		(64,660	)	$	4.72
Forfeited and cancelled		-
Unvested at March 31, 2021		400,846		$	6.29	2.18 Years

Stock-based compensation

	Three Months Ended March 31,
	2021		2020
Selling, general and administrative	$	602	$	429
Research and development		257		38
Total share-based expense	$	859	$	467