|
Stock repurchases (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | 0 Months Ended | |
|---|---|---|---|
|
Dec. 31, 2013
|
Apr. 01, 2013
|
Dec. 31, 2014
|
|
| Equity, Class of Treasury Stock | |||
| Number of shares repurchased and retired under the stock repurchase program | 722,000 | ||
| Value of shares repurchased and retired under the stock repurchase program excluding commissions paid | $ 4,820 | ||
| Average price under the stock repurchase program (in dollars per share) | $ 6.68 | ||
| Remaining amount authorized for the share repurchase program | 5,180 | ||
| Maximum | |||
| Equity, Class of Treasury Stock | |||
| Amount of common stock approved by the entity for a stock repurchase program | $ 10,000 |