Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Accounts receivable, allowance | $ 263 | $ 358 |
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 1,000,000 | 1,000,000 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 150,000,000 | 150,000,000 |
| Common stock, shares issued | 12,215,000 | 12,186,000 |
| Common stock, shares outstanding | 10,802,000 | 10,775,000 |
| Purchase of treasury shares | 1,413,000 | 1,411,000 |
| Series C Preferred Stock [Member] | ||
| Preferred stock, shares issued | 550 | 550 |
| Preferred stock, shares outstanding | 550 | 550 |
| Preferred stock, liquidation preference, value | $ 550 | $ 550 |
| Series B Convertible Preferred Stock [Member] | ||
| Preferred stock, shares issued | 130 | 130 |
| Preferred stock, shares outstanding | 130 | 130 |
| Preferred stock, liquidation preference, value | $ 13 | $ 13 |