|
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data |
Jun. 30, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Accounts receivable, allowance for doubtful accounts | $ 489 | $ 356 |
| Preferred stock, no par value | ||
| Preferred stock, shares authorized | 3,000 | 3,000 |
| Preferred stock, shares issued | 0 | 0 |
| Treasury stock, shares | 1,562 | 1,241 |
|
Class A Common Stock [Member]
|
 |  |
| Common stock, no par value | ||
| Common stock, shares authorized | 30,000 | 30,000 |
| Common stock, shares issued | 16,671 | 16,363 |
| Common stock, shares outstanding | 15,064 | 15,122 |
|
Class B Common Stock [Member]
|
 |  |
| Common stock, no par value | ||
| Common stock, shares authorized | 5,000 | 5,000 |
| Common stock, shares issued | 0 | 0 |