XML 111 R21.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Of Financial Instruments (Tables)
3 Months Ended
Jul. 31, 2013
Fair Value Of Financial Instruments [Abstract]  
Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis

 

 

 

 

 

 

 

 

 

 

 

Fair value

 

Fair value measurement using

 

 

July 31, 2013

 

Level 1

 

Level 2

 

Level 3

 

 

 

 

 

 

 

 

 

Common stock warrant liability

$

303 

$

 -

$

 -

$

303 

 

Fair Value, Assets Measured On Recurring Basis, Unobservable Input Reconciliation

 

 

 

 

 

(in thousands)

 

Common stock warrants

Balance at April 30, 2013

 

$

 

204 

Change in fair value of common stock warrant liability

 

 

 

99 

Balance at July 31, 2013

 

 

 

303