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Note 14 - Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Mar. 31, 2018
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Foreign Currency Translation |  |  | AOCI |
Balance at March 31, 2016 |  | $ | (1,151 | ) |  | $ | (1,151 | )
Unrealized losses arising during the year |  |  | (609 | ) |  |  | (609 | )
Balance at March 31, 2017 |  |  | (1,760 | ) |  |  | (1,760 | )
Unrealized gains arising during the year |  |  | 2,324 |  |  |  | 2,324 |
Balance at March 31, 2018 |  | $ | 564 |  |  | $ | 564 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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