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Name	Size	Last Modified
0000897101-13-001654-index-headers.html		2013-11-08 16:30:33
0000897101-13-001654-index.html		2013-11-08 16:30:33
0000897101-13-001654.txt		2013-11-08 16:30:33
0000897101-13-001654-xbrl.zip	44274	2013-11-08 16:30:33
FilingSummary.xml	10805	2013-11-08 16:30:33
Financial_Report.xls	548167	2013-11-08 16:30:33
Financial_Report.xlsx	46548	2013-11-08 16:30:33
npk-20130929.xml	599860	2013-11-08 16:30:33
npk-20130929.xsd	13776	2013-11-08 16:30:33
npk-20130929_cal.xml	35961	2013-11-08 16:30:33
npk-20130929_def.xml	28035	2013-11-08 16:30:33
npk-20130929_lab.xml	125817	2013-11-08 16:30:33
npk-20130929_pre.xml	99337	2013-11-08 16:30:33
presto134653_10q.htm	236503	2013-11-08 16:30:33
presto134653_ex31-1.htm	8750	2013-11-08 16:30:33
presto134653_ex31-2.htm	8800	2013-11-08 16:30:33
presto134653_ex32-1.htm	2329	2013-11-08 16:30:33
presto134653_ex32-2.htm	2326	2013-11-08 16:30:33
R1.htm	26700	2013-11-08 16:30:33
R10.htm	10388	2013-11-08 16:30:33
R11.htm	64461	2013-11-08 16:30:33
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R13.htm	7492	2013-11-08 16:30:33
R14.htm	186293	2013-11-08 16:30:33
R15.htm	57411	2013-11-08 16:30:33
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R18.htm	17285	2013-11-08 16:30:33
R19.htm	11574	2013-11-08 16:30:33
R2.htm	113438	2013-11-08 16:30:33
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R4.htm	53752	2013-11-08 16:30:33
R5.htm	83342	2013-11-08 16:30:33
R6.htm	9785	2013-11-08 16:30:33
R7.htm	6123	2013-11-08 16:30:33
R8.htm	7402	2013-11-08 16:30:33
R9.htm	190422	2013-11-08 16:30:33
report.css	2740	2013-11-08 16:30:33
Show.js	1410	2013-11-08 16:30:33