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Discontinued Operations - Components of the Balance Sheet (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets of discontinued operations | $ 0 | $ 1,070
Non-current assets of discontinued operations | 0 | 73
Current liabilities of discontinued operations | $ 0 | 939
Discontinued Operations, Disposed of by Means Other than Sale [Member] | EFLS [Member] |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and cash equivalents |  | 93
Trade accounts receivable |  | 312
Inventories |  | 0
Prepaid and other current assets |  | 7
Current assets of discontinued operations |  | 412
Property and equipment, net |  | 0
Other assets |  | 0
Non-current assets of discontinued operations |  | 0
Total assets of discontinued operations |  | 412
Accounts payable |  | 163
Accrued liabilities |  | 73
Billings in excess of costs and estimated earnings on uncompleted contracts |  | 23
Current liabilities of discontinued operations |  | 259
Total liabilities of discontinued operations |  | 259
Discontinued Operations, Disposed of by Sale [Member] | CLL [Member] |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and cash equivalents |  | 4
Trade accounts receivable |  | 145
Inventories |  | 414
Prepaid and other current assets |  | 95
Current assets of discontinued operations |  | 658
Property and equipment, net |  | 23
Other assets |  | 50
Non-current assets of discontinued operations |  | 73
Total assets of discontinued operations |  | 731
Accounts payable |  | 318
Accrued liabilities |  | 362
Billings in excess of costs and estimated earnings on uncompleted contracts |  | 0
Current liabilities of discontinued operations |  | 680
Total liabilities of discontinued operations |  | 680
Discontinued Operations [Member] |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and cash equivalents |  | 97
Trade accounts receivable |  | 457
Inventories |  | 414
Prepaid and other current assets |  | 102
Current assets of discontinued operations |  | 1,070
Property and equipment, net |  | 23
Other assets |  | 50
Non-current assets of discontinued operations |  | 73
Total assets of discontinued operations |  | 1,143
Accounts payable |  | 481
Accrued liabilities |  | 435
Billings in excess of costs and estimated earnings on uncompleted contracts |  | 23
Current liabilities of discontinued operations |  | 939
Total liabilities of discontinued operations |  | $ 939

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