Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Years Ended December 31,
	2020		2019
Numerator:
Net earnings (loss)	$	12,795	$	(8,743	)
Less dividends declared:
Class A		515		518
Class B		2,852		2,834
Undistributed earnings (loss)	$	9,428	$	(12,095	)
Undistributed earnings (loss) allocation:
Class A undistributed earnings (loss)	$	1,574	$	(2,049	)
Class B undistributed earnings (loss)		7,854		(10,046	)
Total undistributed earnings (loss)	$	9,428	$	(12,095	)
Net earnings (loss) allocation:
Class A net earnings (loss)	$	2,089	$	(1,531	)
Class B net earnings (loss)		10,706		(7,212	)
Net earnings (loss)	$	12,795	$	(8,743	)
Denominator:
Weighted average shares outstanding:
Class A		2,145		2,167
Class B		10,185		10,117
Net earnings (loss) per share:
Class A	$	0.97	$	(0.71	)
Class B	$	1.05	$	(0.71	)