CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (UNAUDITED)
Net sales	$ 63,932	$ 67,014	$ 135,490	$ 153,308
Cost of sales	35,840	38,007	75,391	87,139
Gross earnings	28,092	29,007	60,099	66,169
Selling and administrative expenses	21,431	22,307	45,187	49,083
Earnings from operations	6,661	6,700	14,912	17,086
Interest income	964	190	1,869	329
Interest expense		(132)		(517)
Other expense, net	(143)	(168)	(238)	(298)
Earnings before provision for income taxes	7,482	6,590	16,543	16,600
Provision for income taxes	1,875	1,726	4,286	4,291
Net earnings	$ 5,607	$ 4,864	$ 12,257	$ 12,309
Basic weighted average shares outstanding (in shares)	9,429	9,440	9,433	9,461
Diluted weighted average shares outstanding (in shares)	9,548	9,542	9,564	9,625
Basic earnings per share (in dollars per share)	$ 0.60	$ 0.51	$ 1.30	$ 1.30
Diluted earnings per share (in dollars per share)	0.59	0.50	1.28	1.28
Cash dividends declared (per share) (in dollars per share)	$ 0.26	$ 0.25	$ 0.51	$ 0.49
Comprehensive income	$ 5,741	$ 5,210	$ 11,372	$ 12,448