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3. BALANCE SHEET DETAIL - Intangible assets (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2016
Gross Carrying Amount | $ 4,890,000 |  | $ 4,890,000 |  | $ 4,890,000
Accumulated Amortization | (1,509,000) |  | (1,509,000) |  | (1,239,000)
Net Carrying Amount | 3,381,000 |  | 3,381,000 |  | 3,651,000
Amortization of intangible assets | 78,000 | $ 63,000 | 270,000 | $ 145,000 |
Product designs |  |  |  |  |
Gross Carrying Amount | 590,000 |  | 590,000 |  | 590,000
Accumulated Amortization | (590,000) |  | (590,000) |  | (555,000)
Net Carrying Amount |  |  |  |  | 35,000
Patents |  |  |  |  |
Gross Carrying Amount | 4,220,000 |  | 4,220,000 |  | 4,220,000
Accumulated Amortization | (839,000) |  | (839,000) |  | (604,000)
Net Carrying Amount | 3,381,000 |  | 3,381,000 |  | 3,616,000
Software. |  |  |  |  |
Gross Carrying Amount | 80,000 |  | 80,000 |  | 80,000
Accumulated Amortization | $ (80,000) |  | $ (80,000) |  | $ (80,000)

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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