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6. EQUITY TRANSACTIONS (Tables) | 12 Months Ended
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Mar. 31, 2015
Equity [Abstract] |
Summary of warrant activity |
|  | Year Ended March 31, |
|  | 2015 |  |  | 2014 |
|  | Warrants |  |  | Weighted Average Exercise Price |  |  | Warrants |  |  | Weighted Average Exercise Price |
Outstanding, beginning of year |  |  | 1,414,190 |  |  | $ | 5.00 |  |  |  | 1,512,946 |  |  | $ | 5.50 |
Granted |  |  | 806,478 |  |  | $ | 8.46 |  |  |  | 290,610 |  |  | $ | 9.00 |
Exercised |  |  | (590,659 | ) |  | $ | 4.29 |  |  |  | (254,324 | ) |  | $ | 4.00 |
Cancelled/Forfeited |  |  | (199,271 | ) |  | $ | 7.11 |  |  |  | (135,042 | ) |  | $ | 5.50 |
Outstanding, end of year |  |  | 1,430,738 |  |  | $ | 6.84 |  |  |  | 1,414,190 |  |  | $ | 5.00 |
Exercisable, end of year |  |  | 1,430,738 |  |  | $ | 6.84 |  |  |  | 1,414,190 |  |  | $ | 5.00 |
Weighted average estimated fair value of warrants granted |  |  |  |  |  | $ | 11.83 |  |  |  |  |  |  | $ | 4.50 |
Assumptions used |
| Year Ended March 31,
| 2015 |  | 2014
Risk free interest rate | 0.79%-2.29% |  | 1.3%-2.04%
Average expected life | 5 to 7 years |  | 5 to 7 years
Expected volatility | 87.8% - 107.4% |  | 91.2% - 98.5%
Expected dividends | None |  | None
Summary of warrant activity exercisable and outstanding |
|  | Warrants Outstanding |  |  | Warrants Exercisable |
Range of Exercise Prices |  | Number Outstanding |  |  | Weighted Average Remaining Life (Years) |  |  | Weighted Average Exercise Price |  |  | Number Outstanding |  |  | Weighted Average Exercise Price |
$5.00 or Below |  |  | 528,657 |  |  |  | 3.77 |  |  | $ | 2.62 |  |  |  | 528,657 |  |  | $ | 2.62 |
$5.20 - $9.00 |  |  | 605,152 |  |  |  | 4.37 |  |  | $ | 6.66 |  |  |  | 605,152 |  |  | $ | 6.66 |
$9.65 - $15.00 |  |  | 296,929 |  |  |  | 4.71 |  |  | $ | 14.70 |  |  |  | 296,929 |  |  | $ | 14.70 |
|  |  | 1,430,738 |  |  |  |  |  |  |  |  |  |  |  | 1,430,738 |  |  |  |  |
Summary of the stock options outstanding |
|  | Year Ended March 31, |
|  | 2015 |  |  | 2014 |
|  | Options |  |  | Weighted Average Exercise Price |  |  | Options |  |  | Weighted Average Exercise Price |
Outstanding, beginning of year |  |  | 522,668 |  |  | $ | 12.50 |  |  |  | 421,916 |  |  | $ | 14.00 |
Granted |  |  | 59,453 |  |  | $ | 9.50 |  |  |  | 104,411 |  |  | $ | 4.50 |
Exercised |  |  | (1,000 | ) |  | $ | 9.50 |  |  |  | (3,659 | ) |  | $ | 4.00 |
Cancelled/Forfeited |  |  | (79,431 | ) |  | $ | 18.76 |  |  |  | – |  |  | $ | – |
Outstanding, end of year |  |  | 501,690 |  |  | $ | 11.00 |  |  |  | 522,668 |  |  | $ | 12.50 |
Exercisable, end of year |  |  | 418,923 |  |  | $ | 12.00 |  |  |  | 449,751 |  |  | $ | 13.50 |
Weighted average estimated fair value of options granted |  |  |  |  |  | $ | 9.50 |  |  |  |  |  |  | $ | 6.50 |
Weighted average assumptions used to estimate the fair value information |
| Year Ended March 31,
| 2015 |  | 2014
Risk free interest rate | 2.60% |  | 0.38% to 2.65%
Average expected life | 10 years |  | 3 to 10 years
Expected volatility | 90.23% |  | 91.05% to 102.67%
Expected dividends | None |  | None
Detail of options outstanding and exercisable |
|  |  | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices |  |  | Number Outstanding |  |  | Weighted Average Remaining Life (Years) |  |  | Weighted Average Exercise Price |  |  | Number Outstanding |  |  | Weighted Average Exercise Price |
$4.00 - $9.50 |  |  |  | 190,547 |  |  |  | 8.56 years |  |  | $ | 6.03 |  |  |  | 107,780 |  |  | $ | 5.56 |
$10.50 - $12.50 |  |  |  | 220,143 |  |  |  | 4.25 years |  |  | $ | 11.98 |  |  |  | 220,143 |  |  | $ | 11.98 |
$18.00 - $20.50 |  |  |  | 91,000 |  |  |  | 3.05 years |  |  | $ | 19.13 |  |  |  | 91,000 |  |  | $ | 19.13 |
|  |  |  |  | 501,690 |  |  |  |  |  |  |  |  |  |  |  | 418,923 |  |  |  |  |
Schedule of stock-based compensation |
|  | March 31, 2015 |  |  | March 31, 2014 |
Vesting of restricted stock grant |  | $ | – |  |  | $ | 64,444 |
Incremental fair value of option modifications |  |  | – |  |  |  | 1,914 |
Vesting of stock options |  |  | 416,481 |  |  |  | 541,588 |
Total Stock-Based Compensation |  | $ | 416,481 |  |  | $ | 607,946 |

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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51659978&loc=d3e25284-112666 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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