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Note 13 - Segment Reporting - Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Revenue | $ 18,316 | $ 27,373
Income (loss) from operations | 1,106 | (633)
Depreciation expense | 339 | 447
Interest expense, net | 328 | 365
Total assets | 6,727 | 8,576
Segment Reconciling Items [Member] |  |
Total assets | 2,473 | 2,448
Facilities Segment [Member] | Operating Segments [Member] |  |
Revenue | 12,254 | 21,751
Income (loss) from operations | 2,816 | 551
Depreciation expense | 33 | 64
Interest expense, net | 184 | 294
Total assets | 2,682 | 4,190
System Integration Services Segment [Member] | Operating Segments [Member] |  |
Revenue | 6,062 | 5,622
Income (loss) from operations | (1,710) | (1,184)
Depreciation expense | 306 | 383
Interest expense, net | 144 | 71
Total assets | $ 1,572 | $ 1,938

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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