XML 14 R5.htm IDEA: XBRL DOCUMENT v3.22.1

Consolidated Statements of Net Income (Loss) (Unaudited) (Parenthetical)	3 Months Ended
	Mar. 31, 2022
Income Statement [Abstract]
Exchange ratio	2.8409

X

- Definition

Stock exchange ratio.

+ References

No definition available.

+ Details

Name:	cull_StockExchangeRatio
Namespace Prefix:	cull_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeStatementAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration