Note 6 - Real Estate Held for Investment (Detail) - Real Estate Held for Investment (USD $)	Sep. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Real estate held for investment	$ 68,179,936	$ 256,000	$ 131,620,987
Light Industrial Building, Paso Robles, California [Member]
Real estate held for investment	1,463,049		1,496,788
Commercial Buildings, Roseville, California [Member]
Real estate held for investment	779,902		805,383
Retail Complex, Greeley, Colorado (Held Within 720 University, LLC) [Member]
Real estate held for investment	12,071,000		12,308,000
Undeveloped Land, Lake Charles, Louisiana (Held Within Dation, LLC) [Member]
Real estate held for investment	256,108
Undeveloped Land, Madera County, California [Member]
Real estate held for investment	726,580		720,000
Undeveloped Land, Marysville, California [Member]
Real estate held for investment	403,200		403,200
Golf course, Auburn, California - transferred to held for sale [Member]
Real estate held for investment			1,978,412
75 Improved, Residential Lots, Auburn, California, (Held Within Baldwin Ranch Subdivision, LLC) [Member]
Real estate held for investment	3,878,400		3,878,400
Undeveloped industrial land, San Jose, California [Member]
Real estate held for investment	1,958,400		2,044,800
Undeveloped Land, Half Moon Bay, California [Member]
Real estate held for investment	1,468,800		1,468,800
Storage Facility/Business, Stockton, California [Member]
Real estate held for investment	4,049,839		4,118,400
Two Improved Residential Lots, West Sacramento, California [Member]
Real estate held for investment	130,560		182,400
Undeveloped, Residential Land, Coolidge, Arizona [Member]
Real estate held for investment	1,017,600		1,056,000
Office Condominium Complex (16 Units), Roseville, California [Member]
Real estate held for investment	3,991,440		4,068,199
Eight townhomes, Santa Barbara, California- transferred to held for sale [Member]
Real estate held for investment			7,990,000
Nineteen condominium units, San Diego, California-transferred to held for sale [Member]
Real estate held for investment			1,647,219
Golf Course, Auburn, California (Held Within Lone Star Golf, LLC) [Member]
Real estate held for investment	1,968,518		1,984,749
Industrial Building, Chico, California [Member]
Real estate held for investment			3,294,903
133 Condominium Units, Phoenix, Arizona (Held Within 54th Street Condos, LLC) [Member]
Real estate held for investment	7,261,872		5,376,000
Medical Office Condominium Complex, Gilbert, Arizona (Held Within Amfu, LLC) [Member]
Real estate held for investment	4,887,757		4,958,857
61 Condominium Units, Lakewood, Washington (Held Within Phillips Road, LLC) [Member]
Real estate held for investment	4,691,185		4,800,000
Apartment Complex, Ripon, California (Held Within 550 Sandy Lane, LLC) [Member]
Real estate held for investment	4,162,161		4,246,550
45 Condominium and 2 Commercial Units, Oakland, California (Held Within 1401 on Jackson, LLC) [Member]
Real estate held for investment			8,653,490
Industrial building, Sunnyvale, California-transferred to held for sale [Member]
Real estate held for investment			6,720,000
169 Condominium Units and 160 Unit Unoccupied Apartment Building, Miami, Florida (Held Within Totb Miami, LLC) [Member]
Real estate held for investment			34,011,709
12 Condominium and 3 Commercial Units, Tacoma, Washington (Held Within Broadway & Commerce, LLC) [Member]
Real estate held for investment	2,444,322		2,466,328
6 Improved Residential Lots, Coeur D’Alene, Idaho [Member]
Real estate held for investment	969,600		1,342,000
Undeveloped residential and commercial land, Gypsum, Colorado [Member]
Real estate held for investment	$ 9,600,000		$ 9,600,000