Common Stock	12 Months Ended
Dec. 28, 2013
Common Stock
Common Stock	11. Common Stock Share-Based Compensation. Approximately $2.9 million, $4.9 million, and $5.7 million of share-based compensation expense was recorded in fiscal 2013, fiscal 2012, and fiscal 2011, respectively, as an increase to common stock for share-based payment awards made to CRA's employees and directors, based on the estimated grant date fair values of stock options and shares of restricted stock vesting during the period. CRA also recorded $147,000, $79,000, and $34,000 for fiscal 2013, fiscal 2012, and fiscal 2011, respectively, in shared-based compensation expense for grants to non-employee experts. Restricted Share Vesting. In fiscal 2013, fiscal 2012, and fiscal 2011, 134,384, 216,528, and 164,086 shares of restricted stock vested, respectively. CRA redeemed 37,642, 69,207, and 50,724 of these shares from their holders in order to pay $0.7 million, $1.4 million, and $1.1 million, respectively, of employee tax withholdings. Common Stock Repurchases and Retirements. On July 6, 2010, CRA announced that its Board of Directors approved a share repurchase program of up to $5 million of CRA's common stock. On August 30, 2011, February 22, 2012 and August 10, 2012, the Board of Directors authorized the repurchase of up to an additional $7.5 million, $4.45 million, and $5.0 million, respectively, of CRA's common stock under these programs. During fiscal 2013, CRA repurchased and retired 118,968 shares of its common stock under these programs at an aggregate price of approximately $2.2 million, resulting in approximately $1.4 million available for future repurchases as of December 28, 2013. During fiscal 2012, CRA repurchased and retired 466,109 shares of its common stock under these programs at an aggregate price of approximately $9.1 million. During fiscal 2011, CRA repurchased and retired 398,372 shares of its common stock under these programs at an aggregate price of approximately $9.1 million. CRA records the retirement of its repurchased common stock as a reduction to common stock. On February 13, 2014, CRA announced that its Board of Directors approved a share repurchase program of up to an additional $15.0 million of CRA's common stock. During fiscal 2013, fiscal 2012, and fiscal 2011, CRA did not repurchase any shares of its common stock from non-employee experts and employees based on contractual rights of first purchase contained in their stock purchase agreement with CRA. Exercise of Stock Options. During fiscal 2013, 13,389 options were exercised for $0.2 million of proceeds. During fiscal 2012, 47,185 options were exercised for $0.6 million of proceeds. During fiscal 2011, 47,009 options were exercised for $0.6 million of proceeds. Tax Deficit on Stock Option Exercises and Restricted Share Vesting. CRA recorded tax deficits on stock options exercises and vesting of shares of restricted stock as a decrease to common stock in fiscal 2013, fiscal 2012, and fiscal 2011, totaling $0.3 million, $0.6 million, and $0.6 million, respectively.

11. Common Stock

Share-Based Compensation. Approximately $2.9 million, $4.9 million, and $5.7 million of share-based compensation expense was recorded in fiscal 2013, fiscal 2012, and fiscal 2011, respectively, as an increase to common stock for share-based payment awards made to CRA's employees and directors, based on the estimated grant date fair values of stock options and shares of restricted stock vesting during the period.

CRA also recorded $147,000, $79,000, and $34,000 for fiscal 2013, fiscal 2012, and fiscal 2011, respectively, in shared-based compensation expense for grants to non-employee experts.

Restricted Share Vesting. In fiscal 2013, fiscal 2012, and fiscal 2011, 134,384, 216,528, and 164,086 shares of restricted stock vested, respectively. CRA redeemed 37,642, 69,207, and 50,724 of these shares from their holders in order to pay $0.7 million, $1.4 million, and $1.1 million, respectively, of employee tax withholdings.

Common Stock Repurchases and Retirements. On July 6, 2010, CRA announced that its Board of Directors approved a share repurchase program of up to $5 million of CRA's common stock. On August 30, 2011, February 22, 2012 and August 10, 2012, the Board of Directors authorized the repurchase of up to an additional $7.5 million, $4.45 million, and $5.0 million, respectively, of CRA's common stock under these programs.

During fiscal 2013, CRA repurchased and retired 118,968 shares of its common stock under these programs at an aggregate price of approximately $2.2 million, resulting in approximately $1.4 million available for future repurchases as of December 28, 2013. During fiscal 2012, CRA repurchased and retired 466,109 shares of its common stock under these programs at an aggregate price of approximately $9.1 million. During fiscal 2011, CRA repurchased and retired 398,372 shares of its common stock under these programs at an aggregate price of approximately $9.1 million. CRA records the retirement of its repurchased common stock as a reduction to common stock.

On February 13, 2014, CRA announced that its Board of Directors approved a share repurchase program of up to an additional $15.0 million of CRA's common stock.

During fiscal 2013, fiscal 2012, and fiscal 2011, CRA did not repurchase any shares of its common stock from non-employee experts and employees based on contractual rights of first purchase contained in their stock purchase agreement with CRA.

Exercise of Stock Options. During fiscal 2013, 13,389 options were exercised for $0.2 million of proceeds. During fiscal 2012, 47,185 options were exercised for $0.6 million of proceeds. During fiscal 2011, 47,009 options were exercised for $0.6 million of proceeds.

Tax Deficit on Stock Option Exercises and Restricted Share Vesting. CRA recorded tax deficits on stock options exercises and vesting of shares of restricted stock as a decrease to common stock in fiscal 2013, fiscal 2012, and fiscal 2011, totaling $0.3 million, $0.6 million, and $0.6 million, respectively.