|
Inventories and Deferred Costs of Goods Sold (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Dec. 31, 2012
|
|
| Raw materials | $ 1,524 | $ 1,784 | |
| Work in process | 2,086 | 2,103 | |
| Finished goods | 1,356 | 1,429 | |
| Net inventory | 4,966 | 5,316 | |
| Inventory Valuation Reserves | 1,000 | 860 | |
| Deferred cost of goods sold | 92 | 185 | |
| Inventory write-off | $ 0 | $ 29 | |