Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2018	$ 102	$ 80,275	$ 8,089
Balance (in shares) at Dec. 31, 2018	10,187,500
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			10,242	$ 10,242
Shares acquired and canceled (in shares)	0
Shares acquired and canceled	$ 0		0
Stock-based compensation expense		329
Cash dividends declared ($0.10 per share)			0
Balance at Jun. 30, 2019	$ 102	80,604	18,331	99,037
Balance (in shares) at Jun. 30, 2019	10,187,500
Balance at Mar. 31, 2019	$ 102	80,446	13,205
Balance (in shares) at Mar. 31, 2019	10,187,500
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			5,126	$ 5,126
Shares acquired and canceled (in shares)	0			0
Shares acquired and canceled	$ 0		0
Stock-based compensation expense		158
Cash dividends declared ($0.10 per share)			0
Balance at Jun. 30, 2019	$ 102	80,604	18,331	$ 99,037
Balance (in shares) at Jun. 30, 2019	10,187,500
Balance at Dec. 31, 2019	$ 101	92,391	7,634	100,126
Balance (in shares) at Dec. 31, 2019	10,057,506
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			10,087	10,087
Shares acquired and canceled (in shares)	(831,254)
Shares acquired and canceled	$ (9)		(7,107)
Stock-based compensation expense		371
Cash dividends declared ($0.10 per share)			(1,849)
Balance at Jun. 30, 2020	$ 92	92,762	8,765	101,619
Balance (in shares) at Jun. 30, 2020	9,226,252
Balance at Mar. 31, 2020	$ 93	92,571	4,952
Balance (in shares) at Mar. 31, 2020	9,264,412
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			5,036	$ 5,036
Shares acquired and canceled (in shares)	(38,160)			(831,254)
Shares acquired and canceled	$ (1)		(300)
Stock-based compensation expense		191
Cash dividends declared ($0.10 per share)			(923)
Balance at Jun. 30, 2020	$ 92	$ 92,762	$ 8,765	$ 101,619
Balance (in shares) at Jun. 30, 2020	9,226,252