Reverse Stock Split

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Reverse Stock Split

Stockholders’ Equity

Preferred stock and convertible preferred stock consist of the following: 

	June 30, 2021		December 31, 2020
Preferred stock, $0.001 par value; 5,000,000 shares authorized at June 30, 2021 and December 31, 2020; no shares issued and outstanding at June 30, 2021 and December 31, 2020	$	—	$	—
Series B convertible preferred stock, $0.001 par value; 147,000 shares designated at June 30, 2021 and December 31, 2020; 200 shares issued and outstanding at June 30, 2021 and December 31, 2020	$	1	$	1

2021 equity activity

In January 2021, the Company issued 2,408 shares of fully vested common stock, par value $0.0001 per share ("common stock"), with a value of $4,197 pursuant to the Company's 2010 Employee Stock Purchase Plan.

In May 2021, the Company issued 42,808 shares of restricted common stock with a value of $125,000 under its 2004 Stock Option Plan. As of June 30, 2021, 13,911 were vested, 7,493 were forfeited in lieu of paying withholding taxes on the vesting of the restricted stock and 21,404 remain restricted.

In June 2021, the Company issued 7,055 shares of fully vested common stock with a value of $18,950 pursuant to the Company's 2010 Employee Stock Purchase Plan.

During the six months ended June 30, 2021, the Company issued 1,207,681 shares of its common stock, under an at-the-market offering program ("ATM Agreement") for net proceeds of $3,766,848. The ATM Agreement was entered into in 2020 and permits the sale and issuance of the Company's common stock subject to regulatory limitations imposed by the Securities and Exchange Commission and pursuant to a "shelf" registration statement on Form S-3.

2020 equity activity

In March 2020, the Company issued 31,000 shares of fully vested common stock with a value of $43,751 pursuant to a Separation Agreement between the Company and an employee. The shares issued reflected the $1.41 closing price of the Company's common stock as reported on the Nasdaq Capital Market on March 11, 2020.

In June 2020, the Company issued 4,364 shares of fully vested common stock with a value of $7,606 pursuant to the Company's 2010 Employee Stock Purchase Plan.

During the six months ended June 30, 2020, 2,348,619 shares of common stock were issued pursuant to the ATM Agreement for net proceeds of $4,143,431.