Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Accounts receivable, allowances | $ 243 | $ 242 |
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 3,000,000 | 3,000,000 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 37,000,000 | 37,000,000 |
| Common stock, shares issued | 19,748,321 | 18,778,436 |
| Treasury stock, at cost | 1,431,139 | 1,407,211 |