Condensed Consolidated Statements of Equity (Unaudited) - 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)	11
Exercise of stock options, net	$ 11	4	0	0	0	15
Withholding of common stock upon vesting of restricted stock units (in shares)	22
Withholding of common stock upon vesting of restricted stock units	$ 22	(220)	0	0	0	(198)
Shares issued under the employee stock purchase plan (in shares)	5
Shares issued under the employee stock purchase plan	$ 5	48	0	0	0	53
Stock-based compensation	0	376	0	0	0	376
Net income (loss)	0	0	(1,979)	0	0	(1,979)
Other	$ 0	0	0	18	0	18
Exercise of stock options, net (in shares)	11
Withholding of common stock upon vesting of restricted stock units (in shares)	22
Withholding of common stock upon vesting of restricted stock units	$ (22)	220	0	0	0	198
Shares issued under the employee stock purchase plan (in shares)	5
Net income	$ 0	0	(1,979)	0	0	(1,979)
Other	$ 0	0	0	18	0	18
Balances (in shares) at Mar. 31, 2020	8,819
Balances at Mar. 31, 2020	$ 8,819	86,978	(6,265)	(502)	(253)	88,777
Balances (in shares) at Dec. 31, 2019	8,781
Balances at Dec. 31, 2019	$ 8,781	86,770	(4,286)	(520)	(253)	90,492
Net income (loss)						(3,599)
Net income						(3,599)
Balances (in shares) at Sep. 30, 2020	8,943
Balances at Sep. 30, 2020	$ 8,943	88,908	(7,902)	(474)	17	89,492
Balances (in shares) at Mar. 31, 2020	8,819
Balances at Mar. 31, 2020	$ 8,819	86,978	(6,265)	(502)	(253)	88,777
Exercise of stock options, net (in shares)	18
Exercise of stock options, net	$ 18	(18)	0	0	0	0
Withholding of common stock upon vesting of restricted stock units (in shares)	14
Withholding of common stock upon vesting of restricted stock units	$ 14	(62)	0	0	0	(48)
Shares issued under the employee stock purchase plan (in shares)	3
Shares issued under the employee stock purchase plan	$ 3	36	0	0	0	39
Stock-based compensation	0	936	0	0	0	936
Net income (loss)	0	0	(2,281)	0	7	(2,274)
Other	$ 0	0	0	18	0	18
Exercise of stock options, net (in shares)	18
Withholding of common stock upon vesting of restricted stock units (in shares)	14
Withholding of common stock upon vesting of restricted stock units	$ (14)	62	0	0	0	48
Shares issued under the employee stock purchase plan (in shares)	3
Net income	$ 0	0	(2,281)	0	7	(2,274)
Other	$ 0	0	0	18	0	18
Acquisition of Emerald Medical Services (in shares)	80
Acquisition of Emerald Medical Services	$ 80	902	0	0	0	982
Balances (in shares) at Jun. 30, 2020	8,934
Balances at Jun. 30, 2020	$ 8,934	88,772	(8,546)	(484)	(246)	88,430
Exercise of stock options, net (in shares)	4
Exercise of stock options, net	$ 4	11	0	0	0	15
Withholding of common stock upon vesting of restricted stock units (in shares)	1
Withholding of common stock upon vesting of restricted stock units	$ 1	(1)	0	0	0	0
Shares issued under the employee stock purchase plan (in shares)	4
Shares issued under the employee stock purchase plan	$ 4	47	0	0	0	51
Stock-based compensation	0	332	0	0	0	332
Net income (loss)	0	0	644	0	10	654
Other	$ 0	0	0	10	0	10
Exercise of stock options, net (in shares)	4
Withholding of common stock upon vesting of restricted stock units (in shares)	1
Withholding of common stock upon vesting of restricted stock units	$ (1)	1	0	0	0	0
Shares issued under the employee stock purchase plan (in shares)	4
Net income	$ 0	0	644	0	10	654
Other	0	0	0	10	0	10
Controlling interest acquired in subsidiary	$ 0	(253)	0	0	253	0
Balances (in shares) at Sep. 30, 2020	8,943
Balances at Sep. 30, 2020	$ 8,943	88,908	(7,902)	(474)	17	89,492
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)	22
Exercise of stock options, net	$ 22	(15)	0	0	0	7
Withholding of common stock upon vesting of restricted stock units (in shares)	24
Withholding of common stock upon vesting of restricted stock units	$ 24	(265)	0	0	0	(241)
Shares issued under the employee stock purchase plan (in shares)	2
Shares issued under the employee stock purchase plan	$ 2	51	0	0	0	53
Stock-based compensation	0	453	0	0	0	453
Net income (loss)	0	0	714	0	(42)	672
Other	$ 0	0	0	152	(50)	102
Exercise of stock options, net (in shares)	22
Withholding of common stock upon vesting of restricted stock units (in shares)	24
Withholding of common stock upon vesting of restricted stock units	$ (24)	265	0	0	0	241
Shares issued under the employee stock purchase plan (in shares)	2
Net income	$ 0	0	714	0	(42)	672
Other	$ 0	0	0	152	(50)	102
Balances (in shares) at Mar. 31, 2021	8,999
Balances at Mar. 31, 2021	$ 8,999	89,926	(6,096)	(527)	(57)	92,245
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)						122
Net income (loss)						$ (88)
Exercise of stock options, net (in shares)						122
Net income						$ (88)
Balances (in shares) at Sep. 30, 2021	9,114
Balances at Sep. 30, 2021	$ 9,114	91,027	(6,938)	(419)	93	92,877
Balances (in shares) at Mar. 31, 2021	8,999
Balances at Mar. 31, 2021	$ 8,999	89,926	(6,096)	(527)	(57)	92,245
Exercise of stock options, net (in shares)	41
Exercise of stock options, net	$ 41	91	0	0	0	132
Withholding of common stock upon vesting of restricted stock units (in shares)	39
Withholding of common stock upon vesting of restricted stock units	$ 39	(106)	0	0	0	(67)
Shares issued under the employee stock purchase plan (in shares)	3
Shares issued under the employee stock purchase plan	$ 3	55	0	0	0	58
Stock-based compensation	0	566	0	0	0	566
Net income (loss)	0	0	(1,179)	0	51	(1,128)
Other	$ 0	0	0	81	68	149
Exercise of stock options, net (in shares)	41
Withholding of common stock upon vesting of restricted stock units (in shares)	39
Withholding of common stock upon vesting of restricted stock units	$ (39)	106	0	0	0	67
Shares issued under the employee stock purchase plan (in shares)	3
Net income	$ 0	0	(1,179)	0	51	(1,128)
Other	$ 0	0	0	81	68	149
Balances (in shares) at Jun. 30, 2021	9,082
Balances at Jun. 30, 2021	$ 9,082	90,532	(7,275)	(446)	62	91,955
Exercise of stock options, net (in shares)	27
Exercise of stock options, net	$ 27	(28)	0	0	0	(1)
Withholding of common stock upon vesting of restricted stock units (in shares)	1
Withholding of common stock upon vesting of restricted stock units	$ (1)	7	(0)	(0)	(0)	6
Shares issued under the employee stock purchase plan (in shares)	4
Shares issued under the employee stock purchase plan	$ 4	60	0	0	0	64
Stock-based compensation	0	470	0	0	0	470
Net income (loss)	0	0	337	0	31	368
Other	$ 0	0	0	27	0	27
Exercise of stock options, net (in shares)	27
Withholding of common stock upon vesting of restricted stock units (in shares)	1
Withholding of common stock upon vesting of restricted stock units	$ 1	(7)	0	0	0	(6)
Shares issued under the employee stock purchase plan (in shares)	4
Net income	$ 0	0	337	0	31	368
Other	$ 0	0	0	27	0	27
Balances (in shares) at Sep. 30, 2021	9,114
Balances at Sep. 30, 2021	$ 9,114	$ 91,027	$ (6,938)	$ (419)	$ 93	$ 92,877