Quarterly Results of Operations (Tables)

12 Months Ended

Aug. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Results

	First		Second			Third		Fourth
($ in thousands, except per share amounts)	Quarter		Quarter			Quarter		Quarter
Year ended August 31, 2020
Operating revenues	$	109,393	$	113,788		$	123,106	$	128,405
Cost of operating revenues	$	75,319	$	80,382		$	83,410	$	83,038
Earnings before income taxes	$	11,255	$	6,867		$	12,265	$	18,456
Net earnings	$	8,345	$	5,516		$	10,094	$	14,674
Diluted net earnings per share	$	0.77	$	0.51		$	0.93	$	1.35
Year ended August 31, 2019
Operating revenues	$	111,951	$	109,182		$	121,054	$	101,885
Cost of operating revenues	$	83,303	$	84,708		$	91,055	$	70,398
Earnings (loss) before income taxes	$	1,681	$	(5,068	)	$	3,229	$	2,265
Net earnings (loss)	$	1,212	$	(3,440	)	$	2,897	$	1,503
Diluted net earnings (loss) per share	$	0.11	$	(0.32	)	$	0.27	$	0.14