CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($)		Class B Preferred Stock Previously Reported	Class B Preferred Stock Restatement Adjustment	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	Restatement Adjustment Common Stock	Restatement Adjustment Additional Paid-in Capital	Restatement Adjustment Retained Earnings	Restatement Adjustment AOCI (Loss), Net	Restatement Adjustment	Common Stock	Additional Paid-in Capital	Retained Earnings	AOCI (Loss), Net	Total
Balance at Dec. 31, 2017				$ 3,000											$ 81,000	$ 211,145,000	$ 25,861,000	$ (206,000)	$ 236,884,000
Balance (in shares) at Dec. 31, 2017				272,636											8,196,310
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock forfeited (in shares)															8,987
Employee and non-employee stock-based compensation																2,151,000			2,151,000
Exercise of stock options, net of redemption of common stock for exercise of stock options and tax withholdings for restricted stock vesting															$ 1,000	359,000			360,000
Exercise of stock options, net of redemption of common stock for exercise of stock options and tax withholdings for restricted stock vesting ( in shares)															11,977
Issuance of common stock, net	[1]															(33,000)			(33,000)
Repurchase of shares for exercise of stock options and tax withholding for restricted stock vesting																(132,000)			(132,000)
Net income																	25,554,000		25,554,000
Other comprehensive income (loss)																		(267,000)	(267,000)
Balance at Dec. 31, 2018				$ 3,000											$ 82,000	213,490,000	51,415,000	(473,000)	264,517,000
Balance (in shares) at Dec. 31, 2018				272,636											8,217,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2014-09														$ 117,000
Balance at Jan. 01, 2019		$ 3,000	$ 3,000		$ 82,000	$ 213,490,000	$ 51,415,000	$ (473,000)	$ 264,517,000	$ 82,000	$ 213,490,000	$ 51,230,000	$ (405,000)	$ 264,400,000
Balance (in shares) at Jan. 01, 2019		272,636	272,636		8,217,274					8,217,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01																	68,000	(68,000)
Cumulative effect of adopting new accounting standard | ASU 2014-09																	(117,000)		(117,000)
Balance at Dec. 31, 2018				$ 3,000											$ 82,000	213,490,000	51,415,000	(473,000)	264,517,000
Balance (in shares) at Dec. 31, 2018				272,636											8,217,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock grants, net of forfeiture (in shares)															104,862
Employee and non-employee stock-based compensation																3,067,000			3,067,000
Repurchase of shares for exercise of stock options and tax withholding for restricted stock vesting																(89,000)			(89,000)
Repurchase of shares for exercise of stock options and tax withholding for restricted stock vesting (in shares)															(9,218)
Net income																	30,134,000		30,134,000
Other comprehensive income (loss)																		1,612,000	1,612,000
Balance at Dec. 31, 2019				$ 3,000											$ 82,000	$ 216,468,000	$ 81,364,000	1,207,000	$ 299,124,000
Balance (in shares) at Dec. 31, 2019				272,636											8,312,918
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting new accounting standard | ASU 2016-01																		$ 68,000

[1] Represents costs incurred in connection with the Company’s IPO completed in 2017