|
Accounts Receivable/Advances on Contracts in Progress (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Dec. 31, 2012
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Amounts billed | $ 1,265 | $ 1,927 | |
| Accrued revenue | 234 | 238 | |
| Accounts Receivable, Gross | 1,499 | 2,165 | |
| Less: Allowance for doubtful accounts | (46) | (28) | |
| Net accounts receivable - trade | 1,453 | 2,137 | |
| Customer Advances, Current | 1,175 | 1,037 | |
| Allowance for Doubtful Accounts Receivable, Recoveries | $ 0 | $ 5 | |