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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 11,512 | $ 14,643 | $ 31,556 | $ 41,465
Cinema Equipment Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 3,129 | 5,320 | 10,767 | 19,926
Content & Entertainment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 8,383 | 9,323 | 20,789 | 21,539
Phase I Deployment | Cinema Equipment Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,402 | 2,156 | 4,797 | 7,424
Phase II Deployment | Cinema Equipment Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 444 | 1,754 | 1,326 | 8,191
Services | Cinema Equipment Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,043 | 1,410 | 3,378 | 4,311
Digital System Sales | Cinema Equipment Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 240 | 0 | 1,266 | 0
Base Distribution Business | Content & Entertainment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 5,286 | 6,565 | 11,944 | 14,298
OTT Streaming and Digital | Content & Entertainment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 3,097 | $ 2,758 | $ 8,845 | $ 7,241

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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