Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable (USD $)	3 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Balance	$ 78,025,576	$ 69,843,383
Mortgage Premium	3,117,525	2,846,459
Total mortgage notes payable	81,143,101	72,689,842
Gateway Village I [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Feb. 28, 2014
Interest Rate	5.58%
Balance	6,638,629	6,718,119
Gateway Village II [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	May 31, 2014
Interest Rate	5.73%
Balance	6,794,397	6,872,265
Euclid Plaza [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Nov. 30, 2014
Interest Rate	5.23%
Balance	8,238,053	8,329,824
Country Club Gate [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Jan. 31, 2015
Interest Rate	5.04%
Balance	12,357,860	12,477,997
Renaissance Towne Center [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Jun. 30, 2015
Interest Rate	5.13%
Balance	16,625,667	16,760,383
Gateway Village III [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Jul. 31, 2016
Interest Rate	6.10%
Balance	7,414,797	7,460,907
Bernardo Heights Plaza [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Jul. 31, 2017
Interest Rate	5.70%
Balance	8,826,429
Santa Teresa Village [Member]
Note 4 - Mortgage Notes Payable and Credit Facilities (Details) - Mortgage Notes Payable [Line Items]
Maturity Date	Feb. 28, 2018
Interest Rate	6.20%
Balance	$ 11,129,744	$ 11,223,888