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Note 5 - Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
|  | Estimated useful lives |  | As of December 31, |
|  | in years |  | 201 8 |  |  | 201 7 |
Office furniture and equipment |  |  | 3 | to | 10 |  | $ | 5,041 |  |  | $ | 4,904 |
Leasehold improvements |  |  | 1 | to | 6 |  |  | 1,570 |  |  |  | 1,509 |
Vehicles |  |  | 5 | to | 10 |  |  | 206 |  |  |  | 160 |
Manufacturing and test equipment |  |  | 2 | to | 10 |  |  | 2,633 |  |  |  | 2,577 |
|  |  |  |  |  |  |  | 9,450 |  |  |  | 9,150 |
Accumulated depreciation and amortization |  |  |  |  |  |  |  | (8,062 | ) |  |  | (7,601 | )
Property and equipment, net |  |  |  |  |  |  | $ | 1,388 |  |  | $ | 1,549 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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