CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 619,448	$ (146,290)
Other comprehensive income
Unrealized gain on investment securities available-for-sale		78,140
Comprehensive income (loss)	$ 619,448	$ (68,150)