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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2016
Accounting Policies [Abstract] |
Schedule of Inventory | At December 31, 2016 and 2015, inventory consisted of the following (in thousands):
| 2016 |  | 2015
Raw materials | $ | 18,365 |  |  | $ | 20,726 |
Finished goods | 2,558 |  |  | 1,051 |
Work in process | 4,910 |  |  | 5,945 |
Total | $ | 25,833 |  |  | $ | 27,722 |
Property and equipment | The majority of our property and equipment, including rental equipment, is a direct cost to generating revenue and the following table depicts the depreciation associated with each product line at December 31, 2016 , 2015 and 2014 (in thousands):
| 2016 |  | 2015 |  | 2014
Rentals | $ | 21,325 |  |  | $ | 22,308 |  |  | $ | 20,973 |
Sales | 291 |  |  | 281 |  |  | 339 |
Service & Maintenance | 25 |  |  | 16 |  |  | 12 |
Total | $ | 21,641 |  |  | $ | 22,605 |  |  | $ | 21,324 |
Property and equipment consists of the following at December 31, 2016 and 2015 (in thousands):
| Useful Lives (Years) |  | 2016 |  | 2015
Land and building | 30 |  | $ | 7,025 |  |  | $ | 7,025 |
Leasehold improvements | 39 |  | 794 |  |  | 794 |
Office equipment and furniture | 5 |  | 1,454 |  |  | 1,380 |
Software | 5 |  | 573 |  |  | 573 |
Machinery and equipment | 7 |  | 3,111 |  |  | 3,105 |
Vehicles | 3 |  | 6,063 |  |  | 6,475 |
Total |  |  | 19,020 |  |  | 19,352 |
Less accumulated depreciation |  |  | (11,267 | ) |  | (10,825 | )
Total |  |  | $ | 7,753 |  |  | $ | 8,527 |
Schedule of Finite-Lived Intangible Assets By Major Asset Class | The following table represents the identified intangible assets by major asset class (in thousands):
|  |  |  | December 31, 2016 |  | December 31, 2015
|  | Useful Life (years) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value
Developed Technology |  | 20 |  | $ | 2,505 |  |  | $ | 1,508 |  |  | $ | 997 |  |  | $ | 2,505 |  |  | $ | 1,382 |  |  | $ | 1,123 |
Trade Name |  | Indefinite |  | 654 |  |  | — |  |  | 654 |  |  | 654 |  |  | — |  |  | 654 |
Total |  |  |  | $ | 3,159 |  |  | $ | 1,508 |  |  | $ | 1,651 |  |  | $ | 3,159 |  |  | $ | 1,382 |  |  | $ | 1,777 |
Schedule of Indefinite-Lived Intangible Assets By Major Asset Class | The following table represents the identified intangible assets by major asset class (in thousands):
|  |  |  | December 31, 2016 |  | December 31, 2015
|  | Useful Life (years) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value
Developed Technology |  | 20 |  | $ | 2,505 |  |  | $ | 1,508 |  |  | $ | 997 |  |  | $ | 2,505 |  |  | $ | 1,382 |  |  | $ | 1,123 |
Trade Name |  | Indefinite |  | 654 |  |  | — |  |  | 654 |  |  | 654 |  |  | — |  |  | 654 |
Total |  |  |  | $ | 3,159 |  |  | $ | 1,508 |  |  | $ | 1,651 |  |  | $ | 3,159 |  |  | $ | 1,382 |  |  | $ | 1,777 |
Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share amounts):
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
Numerator: |  |  |  |  |
Net income | $ | 6,469 |  |  | $ | 10,147 |  |  | $ | 14,128 |
Denominator for basic net income per common share: |  |  |  |  |  |  |
Weighted average common shares outstanding | 12,702 |  |  | 12,567 |  |  | 12,434 |
Denominator for diluted net income per share: |  |  |  |  |  |  |
Weighted average common shares outstanding | 12,702 |  |  | 12,567 |  |  | 12,434 |
Dilutive effect of stock options and restricted shares | 233 |  |  | 226 |  |  | 287 |
Diluted weighted average shares | 12,935 |  |  | 12,793 |  |  | 12,721 |
Earnings per common share: |  |  |  |  |  |  |
Basic | $ | 0.51 |  |  | $ | 0.81 |  |  | $ | 1.14 |
Diluted | $ | 0.50 |  |  | $ | 0.79 |  |  | $ | 1.11 |

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