Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Common Stock [Member]	Common Stock [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Treasury Shares [Member]	Treasury Shares [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Other Comprehensive Income [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning Balance at Dec. 31, 2019	$ 448,799		$ 448,765	$ 3	$ 3	$ 329,568	$ 329,568	$ 217,266		$ 217,232	$ (105,368)	$ (105,368)	$ 7,330	$ 7,330
Beginning Balance (ASU 2016-13 [Member]) at Dec. 31, 2019		$ (34)							$ (34)
Beginning Balance, Shares at Dec. 31, 2019				28,650,918	28,650,918
Net unrealized change in investments, net of tax	1,512												1,512
Shares tendered for income taxes withholding	(233)					(233)
Shares tendered for income taxes withholding, Shares				(17,500)
Restricted stock vested, Shares				25,000
Stock-based compensation on restricted stock	1,345					1,345
Stock buy-back	(7,986)										(7,986)
Stock buy-back, Shares				(766,900)
Cash dividends declared	(1,726)							(1,726)
Net (loss) income	7,620							7,620
Ending balance at Mar. 31, 2020	449,297			$ 3		330,680		223,126			(113,354)		8,842
Ending balance, Shares at Mar. 31, 2020				27,891,518
Beginning Balance at Dec. 31, 2019	448,799		$ 448,765	$ 3	$ 3	329,568	$ 329,568	217,266		$ 217,232	(105,368)	$ (105,368)	7,330	$ 7,330
Beginning Balance (ASU 2016-13 [Member]) at Dec. 31, 2019		$ (34)							$ (34)
Beginning Balance, Shares at Dec. 31, 2019				28,650,918	28,650,918
Net (loss) income	11,752
Ending balance at Jun. 30, 2020	462,499			$ 3		332,037		225,561			(115,365)		20,263
Ending balance, Shares at Jun. 30, 2020				27,738,062
Beginning Balance at Mar. 31, 2020	449,297			$ 3		330,680		223,126			(113,354)		8,842
Beginning Balance, Shares at Mar. 31, 2020				27,891,518
Net unrealized change in investments, net of tax	11,421												11,421
Deferred tax adjustment for credit expected losses	(4)							(4)
Restricted stock vested, Shares				10,000
Stock-based compensation on restricted stock	1,357					1,357
Stock buy-back	(2,011)										(2,011)
Stock buy-back, Shares				(163,456)
Cash dividends declared	(1,693)							(1,693)
Net (loss) income	4,132							4,132
Ending balance at Jun. 30, 2020	462,499			$ 3		332,037		225,561			(115,365)		20,263
Ending balance, Shares at Jun. 30, 2020				27,738,062
Beginning Balance at Dec. 31, 2020	442,344			$ 3		331,867		219,782			(115,365)		6,057
Beginning Balance, Shares at Dec. 31, 2020				27,748,606
Net unrealized change in investments, net of tax	(8,202)												(8,202)
Shares tendered for income taxes withholding	(127)					(127)
Shares tendered for income taxes withholding, Shares				(12,500)
Restricted stock vested, Shares				25,000
Issued restricted stock, Shares				143,817
Stock-based compensation on restricted stock	260					260
Cash dividends declared	(1,679)							(1,679)
Net (loss) income	(5,148)							(5,148)
Ending balance at Mar. 31, 2021	427,448			$ 3		332,000		212,955			(115,365)		(2,145)
Ending balance, Shares at Mar. 31, 2021				27,904,923
Beginning Balance at Dec. 31, 2020	$ 442,344			$ 3		331,867		219,782			(115,365)		6,057
Beginning Balance, Shares at Dec. 31, 2020				27,748,606
Stock buy-back, Shares	0
Net (loss) income	$ (9,097)
Ending balance at Jun. 30, 2021	424,873			$ 3		332,287		207,325			(115,365)		623
Ending balance, Shares at Jun. 30, 2021				27,946,941
Beginning Balance at Mar. 31, 2021	427,448			$ 3		332,000		212,955			(115,365)		(2,145)
Beginning Balance, Shares at Mar. 31, 2021				27,904,923
Net unrealized change in investments, net of tax	2,768												2,768
Issued restricted stock, Shares				42,018
Stock-based compensation on restricted stock	287					287
Cash dividends declared	(1,680)							(1,680)
Net (loss) income	(3,950)							(3,950)
Ending balance at Jun. 30, 2021	$ 424,873			$ 3		$ 332,287		$ 207,325			$ (115,365)		$ 623
Ending balance, Shares at Jun. 30, 2021				27,946,941