2.2.0.25falsefalse006040 - Disclosure - Fair Value Measurementstruefalsefalse1falsefalseUSDfalsefalse4/1/2010 - 12/31/2010 USD ($) USD ($) / shares $c00035http://www.sec.gov/CIK0000038074duration2010-04-01T00:00:002010-12-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u003Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0frx_NotesToFinancialStatementsAbstractfrxfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNotes to Financial Statements [Abstract]3false0us-gaap_FairValueMeasurementInputsDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">4.   Fair Value Measurements:</div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">The following table presents the level within the fair value hierarchy at which the Company’s financial assets are carried at fair value and measured on a recurring basis:</div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div align="left"><table style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman" cellspacing="0" cellpadding="0" width="60%"><tr><td style="PADDING-BOTTOM: 2px" valign="bottom" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">Description</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -2.6pt">Fair value at</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -2.6pt">December 31, 2010</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Quoted prices in active markets for identical assets</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 1)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Significant other observable market inputs</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 2)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Unobservable</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">market inputs</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 3)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Money market accounts</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">1,336,695</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">959,668</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">377,027</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Municipal bonds and notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">341,893</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">341,893</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Commercial paper</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">989,321</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">229,212</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">760,109</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Variable rate demand notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">199,905</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">199,905</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Floating rate notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">412,355</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">412,355</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Auction rate securities</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">35,189</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">35,189</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Certificates of deposit</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">478,297</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">213,569</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">264,728</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Corporate bonds</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">404,875</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">404,875</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Government agency bonds</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">72,965</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">72,965</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr></table></div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div align="left"><table style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman" cellspacing="0" cellpadding="0" width="60%"><tr><td style="PADDING-BOTTOM: 2px" valign="bottom" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">Description</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -2.6pt">Fair value at</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -2.6pt">March 31, 2010</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Quoted prices in active markets for identical assets</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 1)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Significant other observable market inputs</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 2)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center" valign="bottom" width="12%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">Unobservable</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">market inputs</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"> (Level 3)</div></td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Money market accounts</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">1,839,944</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">1,390,393</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">449,551</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Municipal bonds and notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">426,872</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">426,872</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Commercial paper</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">433,952</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">141,156</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">292,796</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Variable rate demand notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">157,199</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">157,199</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Floating rate notes</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">359,293</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">359,293</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td valign="bottom" width="12%" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Auction rate securities</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">36,089</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">36,089</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Certificates of deposit</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">497,285</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">418,929</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">78,356</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Corporate bonds</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">299,207</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">299,207</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td valign="bottom" align="left" width="44%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Government agency bonds</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">14,941</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%">14,941</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="11%"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr></table></div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">We determine fair value based on a market approach using quoted market values, significant other observable inputs for identical or comparable assets or liabilities, or discounted cash flow analyses.  As of December 31, 2010, the Company has determined the value of the auction rate securities portfolio based upon a discounted cash flow model.  The following table presents a reconciliation of the Level 3 investments measured at fair value on a recurring basis using unobservable inputs for the nine months ended December 31, 2010:</div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div align="left"><table style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman" cellspacing="0" cellpadding="0" width="40%"><tr><td valign="bottom" align="left" width="80%"><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: -9pt; MARGIN-RIGHT: 0pt" align="left">Balance at March 31, 2010</div></td><td valign="bottom" align="right" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="17%">36,089</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom" align="left" width="80%"><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: -9pt; MARGIN-RIGHT: 0pt" align="left">Sales</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" align="right" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="17%">( 900</td><td style="PADDING-BOTTOM: 2px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%">)</td></tr><tr><td style="PADDING-BOTTOM: 4px" valign="bottom" align="left" width="80%"><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: -9pt; MARGIN-RIGHT: 0pt" align="left">Balance at December 31, 2010</div></td><td style="PADDING-BOTTOM: 4px" valign="bottom" align="right" width="1%"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="17%">35,189</td><td style="PADDING-BOTTOM: 4px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr></table></div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div> <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">The majority of the Company’s non-financial assets and liabilities are not required to be carried at fair value on a recurring basis.  However, the Company is required on a non-recurring basis to use fair value measurements when analyzing asset impairment as it relates to license agreements, product rights and other intangible assets and long-lived assets.  The carrying amount of cash, accounts receivable and accounts payable and other short-term financial instruments approximate their fair value due to their short-term nature. </div>4.   Fair Value Measurements:The following table presents the level within the fair value hierarchy at which the Company’s financialfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element represents the disclosure related to the fair value measurement of assets and liabilities which includes [financial] instruments measured at fair value that are classified in stockholders' equity. Such assets and liabilities may be measured on a recurring or nonrecurring basis. The disclosures which may be required or desired include: (1) for assets and liabilities measured on a recurring basis, disclosure may include: (a) the fair value measurements at the reporting date; (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); (c) for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (i) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (ii) purchases, sales, issuances, and settlements (net); (iii) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs); (d) the amount of the total gains or losses for the period in subparagraph (c) (i) above included in earnings (or changes in net assets) that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of income (or activities); (e) the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period and (2) for assets and liabilities that are measured at fair value on a nonrecurring basis (for example, impaired assets) disclosure may include, in addition to (a) above: (a) the reasons for the fair value measurements recorded; (b) the same as (b) above; (c) for fair value measurements using significant unobservable inputs (Level 3), a description of the inputs and the information used to develop the inputs; and (d) the valuation technique(s) used to measure fair value and a discussion of changes, if any, in the valuation technique(s) used to measure similar assets and/or liabilities in prior periods.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 falsefalseFair value measurements (in thousands)12Fair Value MeasurementsUnKnownUnKnownUnKnownUnKnownfalsetrue