|
Note 9 - Commitments and Contingencies (Details) - Warranty Reserve (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Warranty Reserve [Abstract] | |||
| Balance at beginning of period | $ 331 | $ 561 | $ 764 |
| Warranty provision for product sales | 476 | 917 | 870 |
| Settlements made | (117) | (675) | (626) |
| Unused warranty provision | (239) | (472) | (447) |
| Balance at end of period | $ 451 | $ 331 | $ 561 |