|
7. The carrying amounts of financial instruments, including cash and cash equivalents, accounts receivable and accounts payable approximated fair value at September 30, 2011 and December 31, 2010, because of the relative short maturity of these instruments.
Investments in available-for-sale securities at September 30, 2011 were (in thousands):
|
|
|
Cost
|
|
Market value
|
|
Unrealized loss
|
|
|
Certificates of deposit
|
|
$
|
4,412
|
|
$
|
4,396
|
|
$
|
(16
|
)
|
|
Total Marketable securities
|
|
$
|
4,412
|
|
$
|
4,396
|
|
$
|
(16
|
)
|
The cost and market value of the Companys investments at September 30, 2011, determined by contractual maturity, were (in thousands):
|
|
|
|
|
Estimated
|
|
|
|
|
Cost
|
|
Fair Value
|
|
|
|
|
|
|
|
|
|
Due in one year or less
|
|
$
|
4,412
|
|
$
|
4,396
|
|
|
|
|
|
|
|
|
|
Investments in available-for-sale securities at December 31, 2010 were (in thousands):
|
|
|
Cost
|
|
Market value
|
|
Unrealized Gain (loss)
|
|
|
U.S. Government Securities
|
|
$
|
1,008
|
|
$
|
1,009
|
|
$
|
1
|
|
|
Certificates of deposit
|
|
3,524
|
|
3,519
|
|
$
|
(5
|
)
|
|
Total Marketable securities
|
|
$
|
4,532
|
|
$
|
4,528
|
|
$
|
(4
|
)
|
The cost and market value of the Companys investments at December 31, 2010, determined by contractual maturity, were (in thousands):
|
|
|
|
|
Estimated
|
|
|
|
|
Cost
|
|
Fair Value
|
|
|
|
|
|
|
|
|
|
Due in one year or less
|
|
$
|
4,532
|
|
$
|
4,528
|
|