7. STOCK- BASED COMPENSATION - Options outstanding by exercise price (Details) - $ / shares | 9 Months Ended | |
Dec. 31, 2015 | Mar. 31, 2015 |
Options outstanding by exercise price | | |
Exercise Price (in dollars per share) | $ 5.15 | $ 5.16 |
Number of Shares Underlying Options Outstanding (in shares) | 7,338,645 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.15 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 5 years 3 months | |
Options Exercisable, Number Vested and Exercisable (in shares) | 4,976,550 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.05 | |
$2.43 - $3.43 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 2.43 | |
Exercise Price, high end of range (in dollars per share) | $ 3.43 | |
Number of Shares Underlying Options Outstanding (in shares) | 892,584 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 3.18 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 3 years 1 month 6 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 892,584 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 3.18 | |
$3.75 - $4.00 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 3.75 | |
Exercise Price, high end of range (in dollars per share) | $ 4 | |
Number of Shares Underlying Options Outstanding (in shares) | 812,779 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 3.96 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 3 years 2 months 16 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 812,779 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 3.96 | |
$4.17 - $4.68 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 4.17 | |
Exercise Price, high end of range (in dollars per share) | $ 4.68 | |
Number of Shares Underlying Options Outstanding (in shares) | 747,515 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 4.30 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 5 years 11 months 9 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 357,926 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 4.30 | |
$4.81 - $4.98 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 4.81 | |
Exercise Price, high end of range (in dollars per share) | $ 4.98 | |
Number of Shares Underlying Options Outstanding (in shares) | 997,676 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 4.92 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 7 years 10 months 17 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 389,871 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 4.88 | |
$5.13 - $5.34 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 5.13 | |
Exercise Price, high end of range (in dollars per share) | $ 5.34 | |
Number of Shares Underlying Options Outstanding (in shares) | 625,513 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.23 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 8 years 8 months 27 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 49,980 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.19 | |
$ 5.50 | | |
Options outstanding by exercise price | | |
Exercise Price (in dollars per share) | $ 5.50 | |
Number of Shares Underlying Options Outstanding (in shares) | 783,433 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.50 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 10 months 17 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 783,433 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.50 | |
$5.59 - $6.00 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 5.59 | |
Exercise Price, high end of range (in dollars per share) | $ 6 | |
Number of Shares Underlying Options Outstanding (in shares) | 901,930 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.77 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 5 years 6 months 11 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 532,248 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.81 | |
$6.28 - $6.63 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 6.28 | |
Exercise Price, high end of range (in dollars per share) | $ 6.63 | |
Number of Shares Underlying Options Outstanding (in shares) | 812,219 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 6.48 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 6 years 4 months 10 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 645,440 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 6.47 | |
$6.82 - $7.00 | | |
Options outstanding by exercise price | | |
Exercise Price, low end of range (in dollars per share) | 6.82 | |
Exercise Price, high end of range (in dollars per share) | $ 7 | |
Number of Shares Underlying Options Outstanding (in shares) | 651,376 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 6.90 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 6 years 22 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 398,669 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 6.92 | |
$ 9.20 | | |
Options outstanding by exercise price | | |
Exercise Price (in dollars per share) | $ 9.20 | |
Number of Shares Underlying Options Outstanding (in shares) | 113,620 | |
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 9.20 | |
Options Outstanding, Weighted Average Remaining Contractual Life | 5 years 26 days | |
Options Exercisable, Number Vested and Exercisable (in shares) | 113,620 | |
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 9.20 | |