CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2019	$ 42	$ (39)	$ 61,955	$ 38,284	$ 100,242
Balance, beginning (in shares) at Dec. 31, 2019	4,173,675
Net income				2,106	2,106
Ending balance, value at Jun. 30, 2020	$ 42	(39)	61,955	40,390	102,348
Balance, end (in shares) at Jun. 30, 2020	4,173,675
Beginning balance, value at Mar. 31, 2020	$ 42	(39)	61,955	39,125	101,083
Balance, beginning (in shares) at Mar. 31, 2020	4,173,675
Net income				1,265	1,265
Ending balance, value at Jun. 30, 2020	$ 42	(39)	61,955	40,390	102,348
Balance, end (in shares) at Jun. 30, 2020	4,173,675
Beginning balance, value at Dec. 31, 2020	$ 42	(39)	61,955	42,498	$ 104,456
Balance, beginning (in shares) at Dec. 31, 2020	4,173,675				4,173,675
Net income				2,171	$ 2,171
Ending balance, value at Jun. 30, 2021	$ 42	(39)	61,955	44,669	$ 106,627
Balance, end (in shares) at Jun. 30, 2021	4,173,675				4,173,675
Beginning balance, value at Mar. 31, 2021	$ 42	(39)	61,955	43,850	$ 105,808
Balance, beginning (in shares) at Mar. 31, 2021	4,173,675
Net income				819	819
Ending balance, value at Jun. 30, 2021	$ 42	$ (39)	$ 61,955	$ 44,669	$ 106,627
Balance, end (in shares) at Jun. 30, 2021	4,173,675				4,173,675