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Note 4 - Property, Plant and Equipment | 12 Months Ended
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Mar. 31, 2017
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | Note 4. Property, Plant and Equipment Property, plant and equipment consist of the following (in thousands):
|  | March 31, |
|  | 201 7 |  |  | 201 6 |
Land |  | $ | 1,614 |  |  | $ | 1,614 |
Buildings |  |  | 4,726 |  |  |  | 4,723 |
Manufacturing equipment |  |  | 8,861 |  |  |  | 7,802 |
Computer equipment |  |  | 4,143 |  |  |  | 2,649 |
Construction in progress |  |  | 15,882 |  |  |  | 7,333 |
Other |  |  | 1,220 |  |  |  | 685 |
|  |  | 36,446 |  |  |  | 24,806 |
Less accumulated depreciation |  |  | (10,444 | ) |  |  | (8,178 | )
|  | $ | 26,002 |  |  | $ | 16,628 |
Depreciation expense for the years ended March 31, 2017, 2016 and 2015 was $2,287,000, $1,387,000 and $981,000, respectively.

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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 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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