Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Jun. 30, 2011	Mar. 30, 2012 Common Class A [Member]	Mar. 30, 2012 Common Class B [Member]	Mar. 30, 2012 Series B Preferred Stock [Member]
Entity Information [Line Items]
Entity Registrant Name	LEAP TECHNOLOGY INC / DE
Entity Central Index Key	0000110027
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 374,617
Entity Common Stock, Shares Outstanding			65,195,909	25,000	2,170
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2011