CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net income	$ 2,688	$ 3,265	$ 15,810
Other comprehensive income:
Unrealized gain (loss) on available-for-sale securities	25	187	(199)
Unrealized interest rate swap gain	0	2,285	5,641
Other comprehensive income before taxes	358	2,578	6,660
Provision for income taxes related to other comprehensive income items	(100)	(721)	(1,866)
Other comprehensive income	258	1,857	4,794
Comprehensive income	2,946	5,122	20,604
Comprehensive (loss) income attributable to non-controlling interests	(2)	0	2
Comprehensive income attributable to common stockholders	2,948	5,122	20,602
Benefit plan adjustments
Other comprehensive income:
Benefit plan adjustments	100	233	(212)
SERP liability adjustments
Other comprehensive income:
Benefit plan adjustments	$ 233	$ (127)	$ 1,430