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Warrants and Derivative Liabilities (Tables)
9 Months Ended
Dec. 31, 2015
Senior Convertible Note Warrant  
Class Of Warrant Or Right [Line Items]  
Schedule of Assumptions Used to Calculate the Fair Value of Exchanged Warrants

Following is a summary of the key assumptions used to calculate the fair value of the Exchanged Warrant:

 

December 31,

 

 

September 30,

 

 

June 30,

 

 

 

 

 

 

 

 

 

Fiscal Year 15

2015

 

 

2015

 

 

2015

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

0.96

%

 

 

0.64

%

 

 

0.74

%

 

 

 

 

 

 

 

 

Expected annual dividend yield

 

%

 

 

%

 

 

%

 

 

 

 

 

 

 

 

Expected volatility

 

76.68

%

 

 

73.39

%

 

 

71.61

%

 

 

 

 

 

 

 

 

Term  (years)

1.76

 

 

2.01

 

 

2.26

 

 

 

 

 

 

 

 

 

Fair value

$0.3 million

 

 

$0.1 million

 

 

$0.2 million

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31,

 

 

December 31,

 

 

September 30,

 

 

June 30,

 

 

March 31,

 

Fiscal Year 14

2015

 

 

2014

 

 

2014

 

 

2014

 

 

2014

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

0.73

%

 

 

1.00

%

 

 

1.07

%

 

 

0.98

%

 

 

1.11

%

Expected annual dividend yield

 

%

 

 

%

 

 

%

 

 

%

 

 

%

Expected volatility

 

70.42

%

 

 

72.38

%

 

 

76.20

%

 

 

83.50

%

 

 

80.99

%

Term  (years)

2.51

 

 

2.76

 

 

3.01

 

 

3.26

 

 

3.51

 

Fair value

$0.3 million

 

 

$0.5 million

 

 

$1.5 million

 

 

$2.3 million

 

 

$2.2 million

 

 

Senior Secured Term Loan New Warrant  
Class Of Warrant Or Right [Line Items]  
Schedule of Assumptions Used to Calculate the Fair Value of Exchanged Warrants

Following is a summary of the key assumptions used to calculate the fair value of the Warrant:

 

December 31,

 

 

September 30,

 

 

June 30,

 

Fiscal Year 15

2015

 

 

2015

 

 

2015

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

1.65

%

 

 

1.31

%

 

 

1.63

%

Expected annual dividend yield

 

%

 

 

%

 

 

%

Expected volatility

 

73.57

%

 

 

75.32

%

 

 

72.57

%

Term  (years)

 

4.50

 

 

 

4.75

 

 

 

5.00

 

Fair value

$0.2 million

 

 

$0.1 million

 

 

$0.2 million

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New Issuance

 

 

March 31,

 

 

December 31,

 

 

December 19,

 

Fiscal Year 14

2015

 

 

2014

 

 

2014

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

1.41

%

 

 

1.73

%

 

 

1.74

%

Expected annual dividend yield

 

%

 

 

%

 

 

%

Expected volatility

 

74.60

%

 

 

77.43

%

 

 

70.26

%

Term  (years)

 

5.25

 

 

 

5.50

 

 

 

5.53

 

Fair value

$0.2 million

 

 

$0.2 million

 

 

$0.2 million

 

 

November 2014 Warrant  
Class Of Warrant Or Right [Line Items]  
Schedule of Assumptions Used to Calculate the Fair Value of Exchanged Warrants

Following is a summary of the key assumptions used to calculate the fair value of the November 2014 Warrant:

 

December 31,

 

 

September 30,

 

 

June 30,

 

Fiscal Year 15

2015

 

 

2015

 

 

2015

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

1.51

%

 

 

1.17

%

 

 

1.44

%

Expected annual dividend yield

 

%

 

 

%

 

 

%

Expected volatility

 

70.02

%

 

 

73.02

%

 

 

74.18

%

Term  (years)

 

3.87

 

 

 

4.12

 

 

 

4.37

 

Fair value

$2.1 million

 

 

$1.3 million

 

 

$1.8 million

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New Issuance

 

 

March 31,

 

 

December 31,

 

 

November 13,

 

Fiscal Year 14

2015

 

 

2014

 

 

2014

 

 

 

 

 

 

 

 

 

 

 

 

 

Risk-free interest rate

 

1.28

%

 

 

1.61

%

 

 

1.64

%

Expected annual dividend yield

 

%

 

 

%

 

 

%

Expected volatility

 

75.96

%

 

 

78.00

%

 

 

72.86

%

Term  (years)

 

4.62

 

 

 

4.87

 

 

 

5.00

 

Fair value

$2.5 million

 

 

$3.2 million

 

 

$4.3 million