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NOTE 9 - SHARE-BASED COMPENSATION

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement, Noncash Expense [Abstract]

For share-based awards granted, we have recognized compensation expense based on the estimated grant date fair value method. For these awards we have recognized compensation expense using a straight-line amortization method reduced for estimated forfeitures.

The impact on our results of operations of recording share-based compensation, net of forfeitures, for the three months ended March 31, 2021 and 2020, respectively, were as follows:

	Three Months Ended
	March 31, 2021		March 31, 2020
(in thousands)
Cost of goods sold	$	10	$	6
Research and development		71		64
Selling, general and administrative		197		179
Total share-based compensation	$	278	$	249

Equity awards granted during the three months ended March 31, 2021 and 2020 were as follows:

	Three Months Ended
	March 31, 2021		March 31, 2020

Restricted Stock Units		2,000		—
Stock Options		—		—

Non-employee directors Restricted Stock Units (“RSUs”) vest over one year and options vest over three years and have a six-year exercise period. Employee RSUs typically vest over four years and employee Non-Qualified stock options typically vest quarterly over 4 years and have a six-year exercise period.

The remaining unamortized expected future equity compensation expense and remaining amortization period associated with unvested option grants, restricted stock awards and restricted stock unit awards at March 31, 2021 are:

	March 31, 2021

Unamortized future equity compensation expense (in thousands)	$	1,725
Remaining weighted average amortization period (in years)		2.26