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Note 15 - Employee and Non-employee Stock Options (Tables) | 12 Months Ended
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Mar. 31, 2017
Notes Tables |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  | Weighted |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Average |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Exercise Price |  |  | Remaining |  |  | Intrinsic |
|  | Shares |  |  | Per Share |  |  | Life (Years) |  |  | Value |
Outstanding at March 31, 2015 |  |  | 46,000 |  |  | $ | 8.68 |  |  |  | 2.87 |  |  | $ | 732,000 |
Granted |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Forfeited |  |  | (6,000 | ) |  |  | 8.29 |  |  |  |  |  |  |  |  |
Repurchased |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Outstanding at March 31, 2016 |  |  | 40,000 |  |  | $ | 8.74 |  |  |  | 2.09 |  |  | $ | 617,000 |
Granted |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Forfeited |  |  | (30,000 | ) |  |  | 8.29 |  |  |  |  |  |  |  |  |
Repurchased |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Outstanding at March 31, 2017 |  |  | 10,000 |  |  | $ | 10.08 |  |  |  | 6.15 |  |  | $ | 101,000 |
Exercisable at March 31, 2017 |  |  | 10,000 |  |  | $ | 10.08 |  |  |  | 6.15 |  |  | $ | 101,000 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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