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Nature of Operations (Schedule of Details of Impairment) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Impairment [Line Items] |  |  |
Total | $ 1,179,000 | $ 265,000 | $ 440,000
Reorganization and impairment | 138,000 | 60,000 | (3,466,000)
Cost of Revenues | 56,149,000 | 47,294,000 | 51,003,000
Inventory Write-off [Member] |  |  |
Impairment [Line Items] |  |  |
Cost of Revenues | 1,041,000 | $ 205,000 | 3,052,000
Impairment charge [Member] |  |  |
Impairment [Line Items] |  |  |
Reorganization and impairment | 1,595,000 |  | 1,656,000
Revaluation of Liabilities [Member] |  |  |
Impairment [Line Items] |  |  |
Reorganization and impairment | $ (1,457,000) | $ (106,000) | (5,122,000)
Other Impairment [Member] |  |  |
Impairment [Line Items] |  |  |
Reorganization and impairment |  | $ 166,000 | $ 854,000

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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