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STOCK-BASED COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2019

STOCK-BASED COMPENSATION PLANS

Fair Value of Stock Options Grants

The following assumptions were used in estimating the grant date fair value of stock options granted during the years ended December 31, 2019 and 2018: 

		2019		2018
Weighted average expected term		6.25 years		6.25 years
Weighted average volatility		122	%	123	%
Weighted average risk-free interest rate		2.30	%	3.00	%
Dividend yield		0	%	0	%

Schedule of share based compensation expenses recorded in the consolidated statement of income

The following table summarizes stock-based compensation expenses recorded in the condensed consolidated statements of operations (in thousands):

		For the Years Ended December 31,
		2019			2018
Costs of revenue - devices and supplies		$	21		$	33
Sales and marketing expense			205			127
General, and administrative			594			210
Total stock based compensation expense		$	820		$	370

Summary of Stock Option Activity Under the Option Plan

							Weighted
				Weighted			Average		Aggregate
				Average			Remaining		Intrinsic
		Number of Shares		Strike			Contractual		Value
		(in thousands)		Price			Life (Years)		(in thousands)
Outstanding at December 31, 2017		2,142		$	0.56
Granted		215		$	2.99
Exercised		(357)		$	0.44
Forfeited		(115)		$	1.48
Outstanding at December 31, 2018		1,885		$	0.80		6.32		$	4,085
Outstanding at December 31, 2018		1,885		$	0.80
Granted		653		$	5.81
Exercised		(503)		$	0.44
Expired		(6)		$	1.00
Forfeited		(174)		$	2.64
Outstanding at December 31, 2019		1,855		$	2.48		6.42		$	10,032
Exercisable at December 31, 2019		965		$	0.60		4.15		$	7,022

Summary of Stock Options Outstanding Under The Plans

		Outstanding		Weighted average
		Number of		Remaining									Weighted Average
		Options		Contractual		Weighted Average			Exercisable Number of		Remaining Exercisable		Exercisable
Range		(in thousands)		Life (years)		Strike Price			Options (in thousands)		Contractual Life (years)		Strike Price
$0 to $2.00		1,040		4.33		$	0.42		889		3.80		$	0.41
$2.01 to $4.00		367		8.68		$	3.11		76		8.26		$	2.78
$4.01 to $6.00		210		9.18		$	5.35		—		—		$	—
$6.01 to $8.00		200		9.56		$	7.87		—		—		$	—
$8.01 to $10.00		38		9.86		$	8.96		—		—		$	—
		1,855		6.42		$	2.48		965		4.15		$	0.60

Restricted Stock Award Activity Under all Equity Compensation Plans

A summary of our unvested stock options as of December 31, 2019 and 2018 and related activity is presented below:

		Non-vested
		Shares		Weighted
		Under		Average
		Option		Grant Date
		(in thousands)		Fair Value
Non-vested at December 31, 2017		658		$	0.81
Granted		215		$	2.65
Vested		(256)		$	0.72
Forfeited		(48)		$	1.98
Non-vested at December 31, 2018		569		$	1.44
Non-vested at December 31, 2018		569		$	1.44
Granted		653		$	5.12
Vested		(169)		$	1.24
Forfeited		(163)		$	2.44
Non-vested at December 31, 2019		890		$	4.03

A summary of restricted stock award activity under the 2017 Stock Plan for the years ended December 2019 and 2018 are presented below:

		Number of Shares		Weighted Average
		(in thousands)		Grant Date Fair Value
Outstanding at December 31, 2017		15		$	1.10
Granted		80		$	3.56
Vested		(19)		$	3.09
Outstanding at December 31, 2018		76		$	3.19
Outstanding at December 31, 2018		76		$	3.19
Granted		55		$	8.10
Vested		(29)		$	3.24
Outstanding at December 31, 2019		102		$	5.81

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