CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE LOSS	TREASURY STOCK	NON-CONTROLLING INTEREST
Beginning balance (in shares) at Dec. 31, 2018		7,517,547
Beginning balance at Dec. 31, 2018	$ 143,544	$ 41,763	$ 50,737	$ 69,787	$ (6,636)	$ (12,115)	$ 8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,946			3,944			2
Other comprehensive income	1,594				1,594
Stock-based compensation	136		136
Dividends declared	(2,205)			(2,205)
Common shares issued for employee stock purchase plan	21	$ 4	17
Ending balance (in shares) at Mar. 31, 2019		7,518,410
Ending balance at Mar. 31, 2019	147,036	$ 41,767	50,890	71,526	(5,042)	(12,115)	10
Beginning balance (in shares) at Dec. 31, 2019		7,520,740
Beginning balance at Dec. 31, 2019	154,982	$ 41,782	51,487	76,583	(2,777)	(12,115)	22
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,077			3,073			4
Other comprehensive income	564				564
Stock-based compensation	198		198
Dividends declared	(2,253)			(2,253)
Common shares issued for employee stock purchase plan	20	$ 4	16
Ending balance (in shares) at Mar. 31, 2020		7,521,491
Ending balance at Mar. 31, 2020	$ 156,588	$ 41,786	$ 51,701	$ 77,403	$ (2,213)	$ (12,115)	$ 26