Stock repurchases	12 Months Ended
Dec. 31, 2017
Stock repurchases
Stock repurchases	13. Stock repurchases On April 1, 2013, the Company approved a stock repurchase program to repurchase up to $10,000 of the Company's common stock in the open market, exclusive of any commissions, markups or expenses. The stock repurchased will be retired and will resume the status of authorized but unissued shares of common stock. The Company did not repurchase any of our common stock during the years ended December 31, 2017, 2016, and 2015. As of December 31, 2017, the remaining approved amount for repurchases was approximately $5,180.

Stock repurchases

12 Months Ended

Dec. 31, 2017

13. Stock repurchases

On April 1, 2013, the Company approved a stock repurchase program to repurchase up to $10,000 of the Company's common stock in the open market, exclusive of any commissions, markups or expenses. The stock repurchased will be retired and will resume the status of authorized but unissued shares of common stock. The Company did not repurchase any of our common stock during the years ended December 31, 2017, 2016, and 2015. As of December 31, 2017, the remaining approved amount for repurchases was approximately $5,180.