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Fair Value Disclosures (Tables)
3 Months Ended
Jun. 30, 2013
Fair Value Disclosures [Abstract]  
Fair value of financial assets
Following are the disclosures related to our financial assets that are measured at fair value on a recurring basis (dollars in thousands):
 
June 30, 2013
 
March 31, 2013
 
Fair Value
 
Input Level
 
Fair Value
 
Input Level
Available-for-sale marketable securities
 
 
 
 
 
 
 
Adjustable-rate governmental bond funds
$
17,549

 
Level 1
 
$
16,588

 
Level 1
Marketable securities, classified as “available-for-sale”
Marketable securities, all of which were classified as “available-for-sale” at June 30, 2013 and March 31, 2013, consisted of the following (dollars in thousands):
 
June 30,
2013
 
March 31,
2013
Available-for-sale marketable securities
 
 
 
Amortized cost
$
17,596

 
$
16,596

Gross unrecognized holding losses
(47
)
 
(8
)
Fair value
$
17,549

 
$
16,588