Consolidated Statements of Partners' Equity (Unaudited)	USD ($)
PARTNERS' EQUITY - BEGINNING OF PERIOD at Dec. 31, 2016	$ 12,197,583
Net income	1,905,647
Repurchase of Units
Options exercised
PARTNERS' EQUITY - END OF PERIOD at Jun. 30, 2017	14,103,230
PARTNERS' EQUITY - BEGINNING OF PERIOD at Dec. 31, 2017	14,273,208
Net income	2,402,763
Repurchase of Units	(7,509)
Options exercised	3,300
PARTNERS' EQUITY - END OF PERIOD at Jun. 30, 2018	$ 16,671,762