Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

v3.19.2
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]        
Net income $ 136,845 $ 395,474 $ 324,668 $ 454,601
Comprehensive gain $ 136,845 $ 395,474 $ 324,668 $ 454,601