Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balances (in shares) at Dec. 31, 2019	8,781
Balances at Dec. 31, 2019	$ 8,781	$ 86,770	$ (4,286)	$ (520)	$ (253)	$ 90,492
Exercise of stock options, net (in shares)	37					55
Exercise of stock options, net	$ 37	(5)	0	0	0	$ 32
Withholding of common stock upon vesting of restricted stock units (in shares)	37
Withholding of common stock upon vesting of restricted stock units	$ 37	(283)	0	0	0	(246)
Shares issued under the employee stock purchase plan (in shares)	16
Shares issued under the employee stock purchase plan	$ 16	189	0	0	0	205
Acquisition of Emerald Medical Services (in shares)	80
Acquisition of Emerald Medical Services	$ 80	902	0	0	0	982
Controlling interest acquired in subsidiary	0	(253)	0	0	253	0
Stock-based compensation	0	2,382	0	0	0	2,382
Net (loss) income	0	0	(2,524)	0	35	(2,489)
Comprehensive loss	$ 0	0	0	(159)	0	(159)
Balances (in shares) at Dec. 31, 2020	8,951
Balances at Dec. 31, 2020	$ 8,951	89,702	(6,810)	(679)	35	$ 91,199
Exercise of stock options, net (in shares)	107					131
Exercise of stock options, net	$ 107	137	0	0	0	$ 244
Withholding of common stock upon vesting of restricted stock units (in shares)	109
Withholding of common stock upon vesting of restricted stock units	$ 109	(453)	0	0	0	(344)
Shares issued under the employee stock purchase plan (in shares)	12
Shares issued under the employee stock purchase plan	$ 12	215	0	0	0	227
Stock-based compensation	0	2,184	0	0	0	2,184
Net (loss) income	0	0	(106)	0	42	(64)
Comprehensive loss	0	0	0	286	0	286
Other	$ 0	0	0	0	18	18
Balances (in shares) at Dec. 31, 2021	9,179
Balances at Dec. 31, 2021	$ 9,179	$ 91,785	$ (6,916)	$ (393)	$ 95	$ 93,750