Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	RRP Stock Options [Member] Common Stock [Member]	RRP Stock Options [Member] Additional Paid-in Capital [Member]	RRP Stock Options [Member] Retained Earnings [Member]	RRP Stock Options [Member] Unallocated ESOP Shares [Member]	RRP Stock Options [Member] Unallocated MRP Shares [Member]	RRP Stock Options [Member] AOCI Attributable to Parent [Member]	RRP Stock Options [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Unallocated ESOP Shares [Member]	Unallocated MRP Shares [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2017								$ 34,518	$ 36,949,508	$ 17,720,962	$ (1,754,632)		$ 152,579	$ 53,102,935
Net income										479,582				479,582
Other comprehensive income													(174,427)	(174,427)
Allocation of ESOP									21,269		44,504			65,773
RRP options exercised	$ 140	$ 64,995					$ 65,135
Cash dividends paid										(372,379)				(372,379)
Repurchase shares								(503)	(706,555)					(707,058)
Balance at Mar. 31, 2018								34,155	36,329,217	17,828,165	(1,710,128)		(21,848)	52,459,561
Balance at Dec. 31, 2018								33,589	35,579,606	18,859,232	(1,576,616)	(40,361)	(31,084)	52,824,366
Net income										400,070				400,070
Other comprehensive income													190,615	190,615
Allocation of ESOP									19,595		44,504			64,099
RRP options exercised	$ 25	$ 8,900					$ 8,925
Cash dividends paid										(201,110)				(201,110)
Repurchase shares								(249)	(347,331)					(347,580)
Compensation expense on MRP awards amortized												3,363		3,363
Balance at Mar. 31, 2019								$ 33,365	$ 35,260,770	$ 19,058,192	$ (1,532,112)	$ (36,998)	$ 159,531	$ 52,942,748