Note 12 - Stockholders' Equity

6 Months Ended

Jun. 30, 2022

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

12. Stockholders’ Equity

Shares issued

During the six months ended June 30, 2022, the Company issued 1,105,011 shares of common stock upon vesting of Restricted Stock Units ("RSUs") granted by the Company to management and employees. 

During the six months ended June 30, 2022, the Company issued 34,118 shares of common stock upon vesting of RSUs granted to Board members.

During the six months ended June 30, 2022, the Company issued 4,217,134 shares of common stock pursuant to the At The Market Issuance Sales Agreement for net proceeds of $4.6 million.

Stock-based compensation

The stock-based compensation expense was allocated as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Cost of product sales	$	23	$	16	$	48	$	47
Research and development cost		18		11		36		53
General and administrative expense		493		592		1,055		1,198
Total	$	534	$	619	$	1,139	$	1,298

There were no options issued during the three and six months ended June 30, 2022 or the three and six months ended June 30, 2021.

Restricted stock units

In January 2022, the Company granted 44,780 RSUs, all of which were subject to vesting, with a grant fair value of $50,000 to employees. The shares vest in three equal installments over a three-year period.

In February 2022, the Company granted 47,933 RSUs, all of which were subject to vesting, with a grant fair value of $50,000 to employees. The shares vest in three equal installments over a three-year period.

In April 2022, the Company granted 9,615 RSUs, all of which were subject to vesting, with a grant fair value of $10,000 to employees. The shares vest in three equal installments over a three-year period.

In May 2022, the Company granted 182,293 RSUs, all of which were subject to vesting, with a grant fair value of $175,000 to Board Members. The shares vest in four equal installments over a twelve-month period.

In June 2022, the Company granted 12,121 RSUs, all of which were subject to vesting, with a grant fair value of $10,000 to employees. The shares vest in three equal installments over a three-year period.