Quarterly report pursuant to Section 13 or 15(d)

3. Notes Payable (Narrative)

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3. Notes Payable (Narrative) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Non-cash interest expense     $ 294 $ 303
VLL5 Agreements
       
Interest payments made 7 50 27 109
Principal payments made 24 288 556 566
VLL5 Warrants
       
Non-cash interest expense 24 63 90 125
Note payable balance 138   138  
VLL6 Agreements
       
Interest payments made 53 75 114 151
Principal payments made 228 148 449 266
VLL6 Warrants
       
Non-cash interest expense 104 91 204 178
Note payable balance 1,367   1,367  
Discount on loan $ 474   $ 474