XML 25 R50.htm IDEA: XBRL DOCUMENT v3.20.1
Note 7 - Fair Value of Assets and Liabilities - Summary of Activity Related to Level 3 Investment (Details) - Huckleberry Real Estate Fund II, LLC [Member] - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Beginning investment balance $ 468,750 $ 750,000
Realized gain 212,631
Redemptions received (681,381) (281,250)
Ending investment balance $ 468,750