CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND REDEEMABLE NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Parent	Parent Equity Offering	Parent ATM Offering	Common Stock	Common Stock Equity Offering	Common Stock ATM Offering	Additional Paid-In Capital	Additional Paid-In Capital Equity Offering	Additional Paid-In Capital ATM Offering	Retained Earnings	Other Cumulative Comprehensive Loss	Treasury Stock and Company Stock Held for Deferred Compensation
Beginning balances (in shares) at Dec. 31, 2020					15,917,559
Beginning balances (in shares) at Dec. 31, 2020													(528,274)
Beginning balances at Dec. 31, 2020		$ 196,914			$ 796			$ 117,387			$ 115,657	$ (22,962)	$ (13,964)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	$ 2,156	2,156									2,156
Change in cumulative foreign currency translation adjustment	(1,494)	(1,494)										(1,494)
Shares issued in connection with public offering (in shares)						2,875,000	397,820
Shares issued in connection with public offering			$ 123,461	$ 25,262		$ 144	$ 20		$ 123,317	$ 25,242
Shares issued in connection with stock compensation plans (in shares)					104,366
Shares issued in connection with stock compensation plans		253			$ 5			248
Stock-based compensation		3,181						3,181
Treasury stock activity (in shares)													(41,463)
Treasury stock activity		(3,696)						0					$ (3,696)
Ending balances (in shares) at Jun. 30, 2021					19,294,745
Ending balances (in shares) at Jun. 30, 2021													(569,737)
Ending balances at Jun. 30, 2021		346,037			$ 965			269,375			117,813	(24,456)	$ (17,660)
Increase (Decrease) in Temporary Equity [Roll Forward]
Stock-based compensation		3,181						3,181
Beginning balances (in shares) at Mar. 31, 2021					16,399,813
Beginning balances (in shares) at Mar. 31, 2021													(566,343)
Beginning balances at Mar. 31, 2021		218,430			$ 820			144,094			116,089	(24,929)	$ (17,644)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	1,724	1,724									1,724
Change in cumulative foreign currency translation adjustment	473	473										473
Shares issued in connection with public offering (in shares)						2,875,000
Shares issued in connection with public offering			$ 123,461			$ 144			$ 123,317
Shares issued in connection with stock compensation plans (in shares)					19,932
Shares issued in connection with stock compensation plans		253			$ 1			252
Stock-based compensation		1,712						1,712
Treasury stock activity (in shares)													(3,394)
Treasury stock activity		(16)											$ (16)
Ending balances (in shares) at Jun. 30, 2021					19,294,745
Ending balances (in shares) at Jun. 30, 2021													(569,737)
Ending balances at Jun. 30, 2021		346,037			$ 965			269,375			117,813	(24,456)	$ (17,660)
Increase (Decrease) in Temporary Equity [Roll Forward]
Stock-based compensation		1,712						1,712
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	360,525			$ 996			294,515			111,031	(26,538)	$ (19,479)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	2,179	2,264
Change in cumulative foreign currency translation adjustment	(3,791)	(3,791)										(3,791)
Shares issued in connection with stock compensation plans (in shares)					199,100
Shares issued in connection with stock compensation plans		0			$ 10			(10)
Adjustment of redeemable noncontrolling interest to redemption value	7,252	(7,252)									(7,252)
Stock-based compensation	260	4,400						4,400
Treasury stock activity (in shares)													(27,343)
Treasury stock activity		(1,091)											$ (1,091)
Ending balances (in shares) at Jun. 30, 2022					20,119,929
Ending balances (in shares) at Jun. 30, 2022													(597,758)
Ending balances at Jun. 30, 2022	355,055	355,055			$ 1,006			298,905			106,043	(30,329)	$ (20,570)
Redeemable Non-Controlling interest, beginning balance at Dec. 31, 2021	197,196
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	(85)
Escrow adjustment related to redeemable noncontrolling interest	(427)
Adjustment of redeemable noncontrolling interest to redemption value	7,252	(7,252)									(7,252)
Stock-based compensation	260	4,400						4,400
Distribution to redeemable noncontrolling interest holder	(7,000)
Redeemable Non-Controlling interest, ending balance at Jun. 30, 2022	197,196
Beginning balances (in shares) at Mar. 31, 2022					20,084,272
Beginning balances (in shares) at Mar. 31, 2022													(587,188)
Beginning balances at Mar. 31, 2022		351,495			$ 1,004			296,774			102,026	(27,742)	$ (20,567)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	6,459	5,552
Change in cumulative foreign currency translation adjustment	(2,587)	(2,587)										(2,587)
Shares issued in connection with stock compensation plans (in shares)					35,657
Shares issued in connection with stock compensation plans		0			$ 2			(2)
Adjustment of redeemable noncontrolling interest to redemption value	1,535	(1,535)									(1,535)
Stock-based compensation	158	2,133						2,133
Treasury stock activity (in shares)													(10,570)
Treasury stock activity		(3)											$ (3)
Ending balances (in shares) at Jun. 30, 2022					20,119,929
Ending balances (in shares) at Jun. 30, 2022													(597,758)
Ending balances at Jun. 30, 2022	355,055	355,055			$ 1,006			298,905			106,043	$ (30,329)	$ (20,570)
Redeemable Non-Controlling interest, beginning balance at Mar. 31, 2022	197,196
Increase (Decrease) in Temporary Equity [Roll Forward]
Adjustment of redeemable noncontrolling interest to redemption value	1,535	(1,535)									$ (1,535)
Stock-based compensation	158	$ 2,133						$ 2,133
Distribution to redeemable noncontrolling interest holder	(2,600)
Redeemable Non-Controlling interest, ending balance at Jun. 30, 2022	$ 197,196