|
Note 2 - Cash, Cash Equivalents and Investments (Details) - Investment Maturity Classification (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Investment Maturity Classification [Abstract] | ||
| Due in less than 1 year | $ 95,509 | $ 52,880 |
| Due in 1 - 5 years | 29,617 | 32,641 |
| Due in greater than 5 years | 9,860 | 11,755 |
| $ 134,986 | $ 97,276 |