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Note 20 - Segment Information (Details) - Financial Information From Reportable Segments - Income Statement (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue | $ 73,859,000 | $ 76,278,000 | $ 82,166,000 | $ 78,411,000 | $ 67,466,000 | $ 78,763,000 | $ 98,912,000 | $ 96,463,000 | $ 310,714,000 | $ 341,604,000 |
Gross profit | 6,380,000 | 7,261,000 | 8,336,000 | 8,076,000 | 8,638,000 | 9,374,000 | 13,223,000 | 12,514,000 | 30,053,000 | 43,749,000 | 43,749,000
Operating income (loss) | (1,843,000) | (975,000) | (689,000) | (6,881,000) | (559,000) | 635,000 | 4,468,000 | 4,503,000 | (10,388,000) | 9,047,000 | 9,047,000
Income (loss) from continuing operations before income taxes |  |  |  |  |  |  |  |  | (9,980,000) | 12,515,000 | 12,515,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 12,401,000 | 12,251,000 |
Capital expenditures |  |  |  |  |  |  |  |  | 5,053,000 | 7,082,000 | 7,082,000
Industrial Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 276,136,000 | 286,046,000 |
Gross profit |  |  |  |  |  |  |  |  | 31,638,000 | 30,981,000 |
Operating income (loss) |  |  |  |  |  |  |  |  | 20,021,000 | 20,270,000 |
Income (loss) from continuing operations before income taxes |  |  |  |  |  |  |  |  | 20,985,000 | 24,237,000 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 11,261,000 | 10,831,000 |
Capital expenditures |  |  |  |  |  |  |  |  | 4,547,000 | 5,839,000 |
Electronics Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 34,578,000 | 55,558,000 |
Gross profit |  |  |  |  |  |  |  |  | (1,585,000) | 12,768,000 |
Operating income (loss) |  |  |  |  |  |  |  |  | (21,851,000) | (2,668,000) |
Income (loss) from continuing operations before income taxes |  |  |  |  |  |  |  |  | (21,858,000) | (2,673,000) |
Depreciation and amortization |  |  |  |  |  |  |  |  | 999,000 | 1,252,000 |
Capital expenditures |  |  |  |  |  |  |  |  | 444,000 | 1,139,000 |
General, Corporate and Other [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | (8,558,000) | (8,555,000) |
Income (loss) from continuing operations before income taxes |  |  |  |  |  |  |  |  | (9,107,000) | (9,049,000) |
Depreciation and amortization |  |  |  |  |  |  |  |  | 141,000 | 168,000 |
Capital expenditures |  |  |  |  |  |  |  |  | $ 62,000 | $ 104,000 |

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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=31042434&loc=d3e3602-108585 + Details
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