UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Mar. 31, 2021	Dec. 31, 2020
Subsidiary Series A preferred unitholders, issued	162,109	162,109
Subsidiary Series A preferred unitholders, outstanding	162,109	162,109
Common limited partner capital (in shares), issued	6,206,021	6,110,092
Common limited partner capital (in shares), outstanding	6,206,021	6,110,092
Mezzanine Capital
Subsidiary Series A preferred unitholders, issued	86,802	85,308
Subsidiary Series A preferred unitholders, outstanding	86,802	85,308