XML 28 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
FAIR VALUE (Details 3) (Scottish Enterprise Agreement)
1 Months Ended 3 Months Ended
Jun. 22, 2009
USD ($)
Tranche
Jun. 22, 2009
GBP (£)
Tranche
Mar. 31, 2014
USD ($)
Mar. 31, 2014
GBP (£)
Dec. 31, 2013
USD ($)
Dec. 31, 2013
GBP (£)
Jan. 06, 2010
USD ($)
Jan. 06, 2010
GBP (£)
Dec. 31, 2009
USD ($)
Jul. 01, 2009
USD ($)
Jul. 01, 2009
GBP (£)
Scottish Enterprise Agreement                      
Maximum guaranteed amount potentially due to SE   £ 5,000,000 $ 6,700,000   $ 6,500,000 £ 4,000,000     $ 8,000,000    
Modified payment for which parties agreed 1,700,000 1,000,000                  
Number of tranches in which modified payment will be paid 2 2                  
Amount paid             800,000 500,000   800,000 500,000
Potential amount to be paid if staffing levels reduced below the prescribed levels     6,400,000 3,900,000 6,300,000 3,800,000          
Fair value of the liability     $ 20,000   $ 20,000            
Expected volatility (as a percent)     30.00% 30.00%              
Probability of falling below a minimum staffing level within prescribed time period (as a percent)     1.00% 1.00%