Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock Common Class A	Common Stock Common Class B	Additional Paid In Capital	Treasury Stock Common Class A	Retained Earnings	Accumulated Comprehensive Income(Loss)	Non-controlling Interest	Total
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	19,720
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net (loss) income					(4,044)		(37)	(4,081)
Issuance of treasury shares for acquisition of Snap Media			(588)	588
Stock-based compensation			1,360					1,360
Vesting of restricted stock	$ 1			(532)				(531)
Vesting of restricted stock (in shares)	184
Repurchases of Class A common stock				(648)				(648)
Issuance of treasury shares for option exercise				107				107
Adoption of accounting standards | ASU 2018-02					(53)	53
Other comprehensive income (loss), net of tax						(1,855)		(1,855)
Balance at the end of the period at Jun. 30, 2019	$ 3	$ 2	271,117	(59,573)	15,398	(647)	1,451	227,751
Balance at the end of the period (in shares) at Jun. 30, 2019	25,034	19,720
Balance at the beginning of the period at Mar. 31, 2019	$ 2	$ 2	270,674	(59,013)	17,756	530	1,441	231,392
Balance at the beginning of the period (in shares) at Mar. 31, 2019	24,850	19,720
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net (loss) income					(2,358)		10	(2,348)
Stock-based compensation			443					443
Vesting of restricted stock	$ 1			(532)				(531)
Vesting of restricted stock (in shares)	184
Repurchases of Class A common stock				(135)				(135)
Issuance of treasury shares for option exercise				107				107
Other comprehensive income (loss), net of tax						(1,177)		(1,177)
Balance at the end of the period at Jun. 30, 2019	$ 3	$ 2	271,117	(59,573)	15,398	(647)	1,451	227,751
Balance at the end of the period (in shares) at Jun. 30, 2019	25,034	19,720
Balance at the beginning of the period at Dec. 31, 2019	$ 3	$ 2	274,518	(60,521)	16,075	(792)	1,384	230,669
Balance at the beginning of the period (in shares) at Dec. 31, 2019	25,202	19,720
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net (loss) income					(16,110)		(38)	(16,148)
Stock-based compensation			2,636					2,636
Vesting of restricted stock				(510)				(510)
Vesting of restricted stock (in shares)	237
Other comprehensive income (loss), net of tax						(1,806)		(1,806)
Balance at the end of the period at Jun. 30, 2020	$ 3	$ 2	277,154	(61,031)	(35)	(2,598)	1,346	214,841
Balance at the end of the period (in shares) at Jun. 30, 2020	25,439	19,720
Balance at the beginning of the period at Mar. 31, 2020	$ 3	$ 2	275,798	(60,521)	6,647	(2,679)	1,269	220,519
Balance at the beginning of the period (in shares) at Mar. 31, 2020	25,202	19,720
Condensed Consolidated Statements of Changes in Stockholders' Equity
Net (loss) income					(6,682)		77	(6,605)
Stock-based compensation			1,356					1,356
Vesting of restricted stock				(510)				(510)
Vesting of restricted stock (in shares)	237
Other comprehensive income (loss), net of tax						81		81
Balance at the end of the period at Jun. 30, 2020	$ 3	$ 2	$ 277,154	$ (61,031)	$ (35)	$ (2,598)	$ 1,346	$ 214,841
Balance at the end of the period (in shares) at Jun. 30, 2020	25,439	19,720