Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

Name:	us-gaap_AdditionalPaidInCapital
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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No definition available.

BASIS OF PRESENTATION - Summary of Revisions (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Balance Sheet
Other assets	$ 387	$ 239		$ 445	$ 387		$ 305
Contract liabilities	339	194		194	339		0
Accrued severance and related	235				235		610
Additional paid-in capital	55,668	54,182		55,086	55,668		52,920
Retained earnings	21,031	29,680		25,342	21,031		34,931
Statement of Operations
Sales	7,575	5,629	$ 3,672	12,197	19,772	$ 10,760
Professional services	1,996	2,127	628	3,760	5,756	1,815	3,106
Salaries and related costs	3,020	3,338	2,119	6,671	9,691	5,734	$ 9,221
Selling, general and administrative	$ 3,762	$ 3,024	$ 1,957	$ 6,107	$ 9,869	$ 6,280
Loss per share from continuing operations
Basic and diluted (in dollars per share)	$ (0.13)	$ (0.16)	$ (0.01)	$ (0.29)	$ (0.41)	$ (0.19)	$ (0.30)
Income per share from discontinued operations
Basic (in dollars per share)	0.00		2.09		0.00	2.25	2.21
Diluted (in dollars per share)	0.00		1.99		0.00	2.19	2.14
Income per share all operations
Basic (in dollars per share)	(0.13)		2.08		(0.41)	2.06	1.91
Diluted (in dollars per share)	$ (0.13)		$ 1.98		$ (0.41)	$ 2.00	$ 1.85
Immaterial Corrections \| As Reported
Balance Sheet
Other assets		$ 162		$ 368
Contract liabilities		0		0
Accrued severance and related							$ 727
Additional paid-in capital		53,147		54,051			52,221
Retained earnings		30,832		26,494			35,513
Statement of Operations
Sales		5,823		12,391
Professional services		1,791		3,424			3,072
Salaries and related costs		3,221		6,554			$ 8,673
Selling, general and administrative		$ 3,101		$ 6,184
Loss per share from continuing operations
Basic and diluted (in dollars per share)		$ (0.14)		$ (0.27)			$ (0.29)
Income per share from discontinued operations
Basic (in dollars per share)							2.21
Diluted (in dollars per share)							2.14
Income per share all operations
Basic (in dollars per share)							1.93
Diluted (in dollars per share)							$ 1.86
Immaterial Corrections \| Adjustments
Balance Sheet
Other assets		$ 77		$ 77
Contract liabilities		194		194
Accrued severance and related							$ (117)
Additional paid-in capital		1,035		1,035			699
Retained earnings		(1,152)		(1,152)			(582)
Statement of Operations
Sales		(194)		(194)
Professional services		336		336			34
Salaries and related costs		117		117			$ 548
Selling, general and administrative		$ (77)		$ (77)
Loss per share from continuing operations
Basic and diluted (in dollars per share)		$ (0.02)		$ (0.02)			$ (0.01)
Income per share from discontinued operations
Basic (in dollars per share)							0.00
Diluted (in dollars per share)							0.00
Income per share all operations
Basic (in dollars per share)							(0.02)
Diluted (in dollars per share)							$ (0.01)