Annual Fund Operating Expenses (American Growth-Income Trust)	12 Months Ended
	May 01, 2011
Series I, American Growth-Income Trust
Operating Expenses:
Share Class	Series I	[1]
Management fee	0.27%
Distribution and service (12b-1) fees	0.60%
Other Expenses	0.04%
Total fund operating expenses	0.91%
Series II, American Growth-Income Trust
Operating Expenses:
Share Class	Series II	[1]
Management fee	0.27%
Distribution and service (12b-1) fees	0.75%
Other Expenses	0.04%
Total fund operating expenses	1.06%
Series III, American Growth-Income Trust
Operating Expenses:
Share Class	Series III	[1]
Management fee	0.27%
Distribution and service (12b-1) fees	0.25%
Other Expenses	0.04%
Total fund operating expenses	0.56%

[1] The table reflects the combined fees of the feeder fund and the master fund.