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Marketable Securities
 9 Months Ended
Jun. 30, 2013
Marketable Securities
Marketable Securities
The Company invests its cash in marketable securities and classifies them as available-for-sale. The Company records these securities at fair value. Marketable securities reported as current assets represent investments that mature within one year from the balance sheet date. Long-term marketable securities represent investments with maturity dates greater than one year from the balance sheet date. At the time that the maturity dates of these investments become one year or less, the securities are reclassified to current assets. Unrealized gains and losses are excluded from earnings and reported in a separate component of stockholders’ equity until they are sold or mature. At the time of sale, any gains or losses, calculated by the specific identification method, will be recognized as a component of operating results.
The following is a summary of marketable securities (included in short and long-term marketable securities in the Consolidated Balance Sheets), including accrued interest receivable, as of June 30, 2013 and September 30, 2012 (in thousands):
 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair Value
June 30, 2013:
 
 
 
 
 
 
 
U.S. Treasury securities and obligations of U.S. government agencies
$
15,891

 
$
4

 
$
(35
)
 
$
15,860

Corporate securities
37,236

 
7

 
(144
)
 
37,099

Mortgage-backed securities
1,123

 
25

 
(4
)
 
1,144

Other debt securities
43

 
—

 
—

 
43

Municipal securities
27,760

 
12

 
(8
)
 
27,764

Bank certificate of deposits
6,930

 
—

 
(2
)
 
6,928

 
$
88,983

 
$
48

 
$
(193
)
 
$
88,838

September 30, 2012:
 
 
 
 
 
 
 
U.S. Treasury securities and obligations of U.S. government agencies
$
41,202

 
$
15

 
$
(2
)
 
$
41,215

Corporate securities
64,102

 
138

 
(16
)
 
64,224

Mortgage-backed securities
1,310

 
42

 
(1
)
 
1,351

Other debt securities
13

 
—

 
—

 
13

Municipal securities
34,777

 
25

 
(1
)
 
34,801

Bank certificate of deposits
3,987

 
1

 
—

 
3,988

 
$
145,391

 
$
221

 
$
(20
)
 
$
145,592


The fair value of the marketable securities at June 30, 2013 by contractual maturity, are shown below (in thousands). Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.
 
 
Fair Value
Due in one year or less
$
41,199

Due after one year through five years
44,408

Due after ten years
3,231

 
$
88,838