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Note 5 - Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | Note 5 – Property, Plant and Equipment Major classes of property, plant and equipment consist of the following:
|  | 2016 |  |  | 2015 |
Land |  | $ | 2,220,000 |  |  | $ | 2,220,000 |
Buildings |  |  | 6,631,039 |  |  |  | 6,631,039 |
Building improvements |  |  | 5,615,823 |  |  |  | 5,615,823 |
Machinery and equipment |  |  | 2,671,333 |  |  |  | 2,381,964 |
Furniture and fixtures |  |  | 547,144 |  |  |  | 721,919 |
Computer equipment |  |  | 479,534 |  |  |  | 701,367 |
Transportation equipment |  |  | 65,994 |  |  |  | 65,994 |
Lab equipment |  |  | 1,975,533 |  |  |  | 1,972,838 |
Totals at cost |  |  | 20,206,400 |  |  |  | 20,310,944 |
Less: Accumulated depreciation and amortization |  |  | (5,861,476 | ) |  |  | (5,517,021 | )
Property, plant and equipment, net |  | $ | 14,344,924 |  |  | $ | 14,793,923 |
Depreciation and amortization expense (1) |  | $ | 813,657 |  |  | $ | 826,529 |
| (1) | Includes amortization expense of $31,356 and $24,759 for the years ending December 31, 2016 and 2015, respectively. Such amortization expense relates to other capitalized and intangible assets.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -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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