CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Common Stock	Additional Paid-in Capital	Treasury Stock
Balance at Dec. 31, 2018	$ 45,866	$ 39,355	$ (1,570)	$ 2,527	$ 5,554	$ 0
Comprehensive income (loss):
Net income (loss)	1,856	1,856
Other comprehensive income (loss) (net of tax)	3,531		3,531
Common stock issued	53			5	48
Cash dividends	(253)	(253)
Balance at Jun. 30, 2019	51,053	40,958	1,961	2,532	5,602	0
Balance at Dec. 31, 2018	45,866	39,355	(1,570)	2,527	5,554	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock reacquired	(7)
Comprehensive income (loss):
Net income (loss)	4,067
Other comprehensive income (loss) (net of tax)	4,013
Common stock issued	53
Cash dividends	(531)
Balance at Dec. 31, 2019	53,461	42,891	2,443	2,532	5,602	(7)
Balance at Mar. 31, 2019	49,942	41,672	189	2,527	5,554	0
Comprehensive income (loss):
Net income (loss)	(587)	(587)
Other comprehensive income (loss) (net of tax)	1,772		1,772
Common stock issued	53			5	48
Cash dividends	(127)	(127)
Balance at Jun. 30, 2019	51,053	40,958	1,961	2,532	5,602	0
Balance at Dec. 31, 2019	53,461	42,891	2,443	2,532	5,602	(7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock reacquired	(21)					(21)
Comprehensive income (loss):
Net income (loss)	(5,586)	(5,586)
Other comprehensive income (loss) (net of tax)	876		876
Common stock issued	25			1	24
Cash dividends	(304)	(304)
Balance at Jun. 30, 2020	48,451	37,001	3,319	2,533	5,626	(28)
Balance at Mar. 31, 2020	49,958	41,879	(42)	2,532	5,602	(13)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock reacquired	(15)					(15)
Comprehensive income (loss):
Net income (loss)	(4,726)	(4,726)
Other comprehensive income (loss) (net of tax)	3,361		3,361
Common stock issued	25			1	24
Cash dividends	(152)	(152)
Balance at Jun. 30, 2020	$ 48,451	$ 37,001	$ 3,319	$ 2,533	$ 5,626	$ (28)