Stock-Based Compensation

Equity Incentive Plans

In May 2012, the Board approved the 2012 Equity Incentive Plan (“2012 Plan”), which provides for the issuance of equity awards of up to a maximum of 440 shares of the Company’s common stock to employees, non-employee members of the Board, and consultants of the Company. During 2014, the 2012 Plan was amended to provide for the issuance of equity awards of up to 880 shares of the Company’s common stock. The awards can be issued in the form of incentive stock options, non-qualified stock options or restricted stock, and have expiration dates of 5 or 10 years after issuance, depending on whether the recipient already holds above 10% of the voting power of all classes of the Company’s shares. The exercise price will be based on the fair market value of the share on the date of issuance; vesting periods will be determined by the board upon issuance of the equity award. Subsequent to the Company’s initial public offering, no additional equity awards were made under the 2012 Plan.

In November 2016, in connection with its initial public offering, the Company adopted the 2016 Omnibus Incentive Plan (“2016 Plan”) which provides for the issuance of equity awards of up to a maximum of 3,911 shares of the Company’s common stock to employees, non-employee members of the board and consultants of the Company. Together the 2012 Plan and the 2016 Plan are referenced to as the “Plans”.

During the nine months ended September 30, 2019 and 2018, 337 and 742 shares of restricted stock were issued under the Plans, respectively. The grant date fair value per share of all the outstanding restricted stock was $2.44 - $19.00. The shares vest over one to four years from their respective grant dates. For equity awards issued under the 2016 Plan, the grant date fair value was either the actual market price of the Company’s shares or an adjusted price using a Monte Carlo simulation for awards subject to the Company’s performance as compared to a defined peer group. For equity awards issued under the 2012 Plan, the grant date fair value was calculated based on a weighted analysis of (i) publicly-traded companies in a similar line of business to the Company (market comparable method)—Level 2 inputs, and (ii) discounted cash flows of the Company—Level 3 inputs. The Company recognized, in operating expenses and cost of goods sold on the condensed consolidated income statements, $652 and $873 of compensation expense for the restricted stock during the three months ended September 30, 2019 and 2018, respectively. The Company recognized, in operating expenses on the consolidated income statements, $2,196 and $2,133 of compensation expense for the restricted stock during the nine months ended September 30, 2019 and 2018, respectively. At September 30, 2019, the Company had unrecognized compensation expense of $4,332 related to granted but unvested stock awards, which is to be recognized as follows:



Remainder of 2019	$	652
2020	2,076
2021	1,041
2022	461
2023	102
Total	$	4,332

The following table summarizes restricted stock activity under the Plans from December 31, 2018 through September 30, 2019:



	Number of Shares		Weighted Average
Unvested, December 31, 2018	1,027		$	9.83
Granted	337		$	2.54
Vested	(261	)	$	8.77
Forfeited	(18	)	$	6.38
Unvested, September 30, 2019	1,085		$	9.32

Employee Stock Purchase Plan

Shares of the Company’s common stock may be purchased by eligible employees under the Company’s 2016 Employee Stock Purchase Plan in six-month intervals at a purchase price equal to at least 85% of the lesser of the fair market value of the Company’s common stock on either the first day or the last day of each six-month offering period. Employee purchases may not exceed 20% of their gross compensation during an offering period.