Stockholders' Equity

Share Repurchase Program and Secondary Stock Offerings

In February 2016, the Company's Board of Directors authorized the Company's 2016 share repurchase program (the "2016 Repurchase Program"), permitting repurchases of up to an aggregate of $40,000 in shares of common stock. The plan expired on December 31, 2017. The Company repurchased 890 shares for a total of $13,754 under both the 2016 Repurchase Program and the prior repurchase program of the Company, which expired on December 31, 2015. Shares of common stock repurchased under such programs are accounted for as treasury stock under the cost method.

In March 2017, the Company closed a secondary offering, whereby the selling stockholders sold an additional 5,574 shares of the Company's common stock at a price of $26.65 per share, less underwriting discounts and commissions. The total shares sold included 466 shares, which were also sold by certain selling stockholders, in connection with the underwriters' option to purchase additional shares. The Company did not sell shares or receive any proceeds from the sales of shares by the selling stockholders. As a result of the March 2017 secondary offering, Compass Group Diversified Holdings LLC ("Compass") no longer holds any equity interest in the Company.

The Company incurred approximately $113 and $249 of expenses in connection with the secondary offering during the three and six months ended June 30, 2017.

Equity Incentive Plans

The following table summarizes the allocation of stock-based compensation in the accompanying consolidated statements of income:



	For the three months ended				For the six months ended
	June 29, 2018		June 30, 2017		June 29, 2018		June 30, 2017
Cost of sales	$	131	$	146	$	233	$	180
Sales and marketing	139		121		299		268
Research and development	154		66		296		178
General and administrative	1,361		2,047		3,003		3,663
Total	$	1,785	$	2,380	$	3,831	$	4,289

The following table summarizes the activity for the Company's unvested restricted stock units ("RSU") for the six months ended June 29, 2018.



	Unvested RSUs
	Number of shares outstanding		Weighted-average grant date fair value
Unvested at December 29, 2017	800		$	23.91
Granted	189		$	33.33
Canceled	(8	)	$	17.17
Vested	(289	)	$	20.05
Unvested at June 29, 2018	692		$	28.17

As of June 29, 2018, the Company had approximately $15,562 of unrecognized stock-based compensation expense related to RSUs, which will be recognized over the remaining weighted-average vesting period of approximately 2.83 years.

During the six months ended June 29, 2018, 11 shares of common stock were issued due to the exercise of stock options, resulting in proceeds of $62. No options to purchase common stock were expired or forfeited during the six months ended June 29, 2018. As of June 29, 2018, stock-based compensation expense related to stock options has been fully recognized.