Condensed Balance Sheets (USD $)	Jul. 31, 2011	Jan. 31, 2011
Assets
Cash and cash equivalents	$ 7,869,297	$ 8,693,691
U.S. Government securities, at amortized cost (which approximates market)	336,098	668,889
Accrued income receivable	6,025,023	232,786
Prepaid expenses	143,883	50,207
Total Current Assets	14,374,301	9,645,573
U.S. Government securities, at amortized cost (which approximates market)	217,889
Fixed property, including intangibles, at nominal values
Amended Assignment of Peters Lease	1	1
Assignment of Cloquet Lease	1	1
Certificate of beneficial interest for 13,120,010 units of land trust	1	1
Total Fixed property, including intangibles, at nominal values	3	3
Total Assets	14,592,193	9,645,576
Liabilities
Distribution payable	7,872,006	8,528,006
Accrued expenses	73,844	129,765
Deferred royalty revenue (Note 4)	991,000
Total Liabilities	8,936,850	8,657,771
Unallocated Reserve (Note 5)	5,655,340	987,802
Trust Corpus	3	3
Total Liabilities, Unallocated Reserve and Trust Corpus	$ 14,592,193	$ 9,645,576