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Name	Size	Last Modified
0001104659-12-042327-index-headers.html		2012-06-07 16:01:58
0001104659-12-042327-index.html		2012-06-07 16:01:58
0001104659-12-042327.txt		2012-06-07 16:01:58
0001104659-12-042327-xbrl.zip	53093	2012-06-07 16:01:58
a12-13577_110q.htm	493414	2012-06-07 16:01:58
a12-13577_1ex31d1.htm	11046	2012-06-07 16:01:58
a12-13577_1ex31d2.htm	11628	2012-06-07 16:01:58
a12-13577_1ex32d1.htm	7155	2012-06-07 16:01:58
a12-13577_1ex32d2.htm	7640	2012-06-07 16:01:58
chke-20120428.xml	197412	2012-06-07 16:01:58
chke-20120428.xsd	12249	2012-06-07 16:01:58
chke-20120428_cal.xml	42333	2012-06-07 16:01:58
chke-20120428_def.xml	77495	2012-06-07 16:01:58
chke-20120428_lab.xml	238526	2012-06-07 16:01:58
chke-20120428_pre.xml	117038	2012-06-07 16:01:58
FilingSummary.xml	6716	2012-06-07 16:01:58
Financial_Report.xls	189117	2012-06-07 16:01:58
R1.htm	29294	2012-06-07 16:01:58
R10.htm	16033	2012-06-07 16:01:58
R11.htm	14920	2012-06-07 16:01:58
R12.htm	6060	2012-06-07 16:01:58
R2.htm	136689	2012-06-07 16:01:58
R3.htm	32578	2012-06-07 16:01:58
R4.htm	55065	2012-06-07 16:01:58
R5.htm	42092	2012-06-07 16:01:58
R6.htm	114927	2012-06-07 16:01:58
R7.htm	10736	2012-06-07 16:01:58
R8.htm	131989	2012-06-07 16:01:58
R9.htm	5781	2012-06-07 16:01:58
report.css	2721	2012-06-07 16:01:58
Show.js	6423	2012-06-07 16:01:58