Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of reconciliation of the numerators and denominators we used in the basic and diluted per share

The following table presents a reconciliation of the numerators and denominators we used in the basic and diluted per share computations for our common stock:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Basic earnings per common share:
Numerator:
Net income attributable to NI Holdings, Inc.	$	226	$	129	$	6,348	$	4,818
Denominator:
Weighted average shares outstanding		22,377,421		22,663,280		22,369,632		22,711,373
Basic earnings per common share	$	0.01	$	0.01	$	0.28	$	0.21
Diluted earnings per common share:
Numerator:
Net income attributable to NI Holdings, Inc.	$	226	$	129	$	6,348	$	4,818
Denominator:
Number of shares used in basic computation		22,377,421		22,663,280		22,369,632		22,711,373
Weighted average effect of dilutive securities
Add: Restricted stock units and performance share units		19,537		—		15,939		—
Number of shares used in per share computations		22,396,958		22,663,280		22,385,571		22,711,373
Diluted earnings per common share	$	0.01	$	0.01	$	0.28	$	0.21