CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND REDEEMABLE NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Parent	Common Stock	Additional Paid-In Capital	Retained Earnings	Other Cumulative Comprehensive Loss	Treasury Stock, at cost, and Company Held for Deferred Compensation, at par
Beginning balances (in shares) at Dec. 31, 2021			19,920,829
Beginning balances (in shares) at Dec. 31, 2021							(570,415)
Beginning balances at Dec. 31, 2021		$ 360,525	$ 996	$ 294,515	$ 111,031	$ (26,538)	$ (19,479)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	$ (4,280)	(3,288)			(3,288)
Change in cumulative foreign currency translation adjustment	(1,204)	(1,204)				(1,204)
Shares issued in connection with stock compensation plans (in shares)			163,443
Shares issued in connection with stock compensation plans		0	$ 8	(8)
Stock-based compensation	102	2,267		2,267
Adjustment of redeemable noncontrolling interest to redemption value	5,717	(5,717)			(5,717)
Treasury stock activity (in shares)							(16,773)
Treasury stock activity		(1,088)		0			$ (1,088)
Ending balances (in shares) at Mar. 31, 2022			20,084,272
Ending balances (in shares) at Mar. 31, 2022							(587,188)
Ending balances at Mar. 31, 2022		351,495	$ 1,004	296,774	102,026	(27,742)	$ (20,567)
Redeemable Non-Controlling interest, beginning balance at Dec. 31, 2021	197,196
Increase (Decrease) in Temporary Equity [Roll Forward]
Net Income (loss)	(992)
Distribution to redeemable noncontrolling interest holder	(4,400)
Consideration adjustment related to redeemable noncontrolling interest (Note 3)	(427)
Stock-based compensation	102	2,267		2,267
Adjustment of redeemable noncontrolling interest to redemption value	5,717	(5,717)			(5,717)
Redeemable Non-Controlling interest, ending balance at Mar. 31, 2022	$ 197,196
Beginning balances (in shares) at Dec. 31, 2022			20,140,654
Beginning balances (in shares) at Dec. 31, 2022	(605,723)						(605,723)
Beginning balances at Dec. 31, 2022	$ 380,647	380,647	$ 1,007	303,893	125,215	(28,758)	$ (20,710)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	2,139	909			909
Change in cumulative foreign currency translation adjustment	769	769				769
Shares issued in connection with stock compensation plans (in shares)			258,807
Shares issued in connection with stock compensation plans		0	$ 13	(13)
Stock-based compensation	232	4,795		4,795
Adjustment of redeemable noncontrolling interest to redemption value	$ 1,138	(1,138)			(1,138)
Treasury stock activity (in shares)							(77,184)
Treasury stock activity		(3,705)					$ (3,705)
Ending balances (in shares) at Mar. 31, 2023			20,399,461
Ending balances (in shares) at Mar. 31, 2023	(682,907)						(682,907)
Ending balances at Mar. 31, 2023	$ 382,277	382,277	$ 1,020	308,675	124,986	$ (27,989)	$ (24,415)
Redeemable Non-Controlling interest, beginning balance at Dec. 31, 2022	187,522
Increase (Decrease) in Temporary Equity [Roll Forward]
Net Income (loss)	1,230
Distribution to redeemable noncontrolling interest holder	(2,600)
Stock-based compensation	232	4,795		$ 4,795
Adjustment of redeemable noncontrolling interest to redemption value	1,138	$ (1,138)			$ (1,138)
Redeemable Non-Controlling interest, ending balance at Mar. 31, 2023	$ 187,522