CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands	Class B Preferred Stock Previously Reported	Class B Preferred Stock	Previously Reported Common Stock	Previously Reported Additional Paid-in Capital	Previously Reported Retained Earnings	Previously Reported AOCI (Loss), Net	Previously Reported	Common Stock	Additional Paid-in Capital	Retained Earnings	AOCI (Loss), Net	Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01										$ (68)	$ 68
Cumulative effect of adopting new accounting standard | ASU 2014-09										(117)		$ (117)
Adjusted balance		$ 3						$ 82	$ 213,490	51,230	(405)	264,400
Balance at Dec. 31, 2018	$ 3		$ 82	$ 213,490	$ 51,415	$ (473)	$ 264,517
Balance (in shares) at Dec. 31, 2018	272,636	272,636	8,217,274					8,217,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock grants, net of forfeiture (in shares)								106,423
Employee and non-employee stock-based compensation									1,478			1,478
Repurchase of shares for tax withholding for restricted stock vesting									(88)			(88)
Repurchase of shares for tax withholding for restricted stock vesting (in shares)								(2,881)
Net income										14,588		14,588
Other comprehensive income (loss)											952	952
Balance at Jun. 30, 2019		$ 3						$ 82	214,880	65,818	547	281,330
Balance (in shares) at Jun. 30, 2019		272,636						8,320,816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01											0
Balance at Mar. 31, 2019		$ 3						$ 82	214,088	59,761	(147)	273,787
Balance (in shares) at Mar. 31, 2019		272,636						8,320,816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee and non-employee stock-based compensation									792			792
Net income										6,057		6,057
Other comprehensive income (loss)											694	694
Balance at Jun. 30, 2019		$ 3						$ 82	214,880	65,818	547	281,330
Balance (in shares) at Jun. 30, 2019		272,636						8,320,816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01											0
Balance at Dec. 31, 2019		$ 3						$ 82	216,468	81,364	1,207	299,124
Balance (in shares) at Dec. 31, 2019		272,636						8,312,918
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock grants, net of forfeiture (in shares)								(12,244)
Employee and non-employee stock-based compensation									1,754			1,754
Repurchase of shares for tax withholding for restricted stock vesting									(579)			(579)
Repurchase of shares for tax withholding for restricted stock vesting (in shares)								(5,873)
Net income										16,908		16,908
Other comprehensive income (loss)											(38)	(38)
Balance at Jun. 30, 2020		$ 3						$ 82	217,643	98,272	1,169	317,169
Balance (in shares) at Jun. 30, 2020		272,636						8,294,801
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01											0
Balance at Mar. 31, 2020		$ 3						$ 82	216,701	87,461	4,289	308,536
Balance (in shares) at Mar. 31, 2020		272,636						8,294,801
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee and non-employee stock-based compensation									942			942
Net income										10,811		10,811
Other comprehensive income (loss)											(3,120)	(3,120)
Balance at Jun. 30, 2020		$ 3						$ 82	$ 217,643	$ 98,272	$ 1,169	$ 317,169
Balance (in shares) at Jun. 30, 2020		272,636						8,294,801