Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock Common Class A	Common Stock Common Class B	Additional Paid In Capital	Treasury Stock Common Class A	Retained Earnings Adoption of accounting standards	Retained Earnings	Accumulated Comprehensive Income(Loss) Adoption of accounting standards	Accumulated Comprehensive Income(Loss)	Non-controlling Interest	Total
Balance at the beginning of the period (ASU 2018-02) at Dec. 31, 2018					$ (53)		$ 53
Balance at the beginning of the period at Dec. 31, 2018	$ 2	$ 2	$ 270,345	$ (59,088)		$ 19,495		$ 1,155	$ 1,488	$ 233,399
Balance at the beginning of the period (in shares) at Dec. 31, 2018	24,850,000	19,720,000
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net loss						(3,367)			(104)	(3,471)
Issuance of treasury shares for acquisition of Snap Media			(588)	588
Stock-based compensation			2,883							2,883
Vesting of restricted stock	$ 1		1,925	(1,513)						413
Vesting of restricted stock (in shares)	352,000
Repurchases of Class A common stock				(662)						(662)
Issuance of treasury shares for option exercise			(47)	154						107
Other comprehensive loss, net of tax								(2,000)		(2,000)
Balance at the end of the period at Dec. 31, 2019	$ 3	$ 2	274,518	(60,521)		16,075		(792)	1,384	230,669
Balance at the end of the period (in shares) at Dec. 31, 2019	25,202,000	19,720,000
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net loss	$ 0	$ 0	0	0		(1,235)		0	(903)	(2,138)
Stock-based compensation	0	0	3,108	0		0		0	0	3,108
Vesting of restricted stock	$ 0	$ 0	2,174	(582)		0		0	0	1,592
Vesting of restricted stock (in shares)	256,000	0
Repurchases of Class A common stock				$ (350)						(350)
Repurchases of Class A common stock (in shares)				33,082
Other comprehensive loss, net of tax	$ 0	$ 0	0	$ 0		0		(1,395)	0	(1,395)
Balance at the end of the period at Dec. 31, 2020	$ 3	$ 2	$ 279,800	$ (61,453)		$ 14,840		$ (2,187)	$ 481	$ 231,486
Balance at the end of the period (in shares) at Dec. 31, 2020	25,458,000	19,720,000