Consolidated Condensed Statement of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Dec. 31, 2022	13,594
Balances at Dec. 31, 2022	$ 2,025	$ 156,450	$ 158,475
Net income		2,690	2,690
Expense of restricted stock units	$ 917	0	917
Settlement of restricted stock units (in shares)	108
Settlement of restricted stock units	$ 0	0	0
Dividends declared		(4,120)	(4,120)
Issuance of common stock for service (in shares)	35
Issuance of common stock for service	$ 447	0	447
Balances (in shares) at Jun. 30, 2023	13,737
Balances at Jun. 30, 2023	$ 3,389	155,020	158,409
Balances (in shares) at Mar. 31, 2023	13,730
Balances at Mar. 31, 2023	$ 2,879	153,439	156,318
Net income		3,642	3,642
Expense of restricted stock units	$ 458	0	458
Settlement of restricted stock units (in shares)	3
Settlement of restricted stock units	$ 0	0	0
Dividends declared		(2,061)	(2,061)
Issuance of common stock for service (in shares)	4
Issuance of common stock for service	$ 52	0	52
Balances (in shares) at Jun. 30, 2023	13,737
Balances at Jun. 30, 2023	$ 3,389	155,020	158,409
Balances (in shares) at Dec. 31, 2023	13,737
Balances at Dec. 31, 2023	$ 4,480	160,099	164,579
Net income		4,619	4,619
Expense of restricted stock units	$ 926		926
Settlement of restricted stock units (in shares)	140
Settlement of restricted stock units	$ 0		0
Dividends declared		(4,142)	(4,142)
Balances (in shares) at Jun. 30, 2024	13,877
Balances at Jun. 30, 2024	$ 5,406	160,576	165,982
Balances (in shares) at Mar. 31, 2024	13,862
Balances at Mar. 31, 2024	$ 4,909	159,811	164,720
Net income		2,844	2,844
Expense of restricted stock units	$ 497	0	497
Settlement of restricted stock units (in shares)	15
Settlement of restricted stock units	$ 0	0	0
Dividends declared		(2,079)	(2,079)
Balances (in shares) at Jun. 30, 2024	13,877
Balances at Jun. 30, 2024	$ 5,406	$ 160,576	$ 165,982