SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables)

6 Months Ended

Jun. 30, 2020

SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract]

Schedule of Net Revenues

	For the Three Months Ended June 30,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2020		2019		2020		2019		2020		2019
Medicaid	$	16	$	9	$	—	$	—	$	16	$	9
Medicare		643		450		—		—		643		450
Self-pay		86		11		—		—		86		11
Third party payers		847		451		—		—		847		451
Contract diagnostics		—		—		24		274		24		274
Service revenue, net	$	1,592	$	921	$	24	$	274	$	1,616	$	1,195

	For the Six Months Ended June 30,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2020		2019		2020		2019		2020		2019
Medicaid	$	25	$	12	$	—	$	—	$	25	$	12
Medicare		1,168		844		—		—		1,168		844
Self-pay		136		15		—		—		136		15
Third party payers		1,363		807		—		—		1,363		807
Contract diagnostics		—		—		382		427		382		427
Service revenue, net	$	2,692	$	1,678	$	382	$	427	$	3,074	$	2,105

Schedule of Gross to Net Sales Adjustments

The following table presents our revenues initially recognized for each associated payer class during the three and six months ended June 30, 2020 and 2019.

	For the Three Months Ended June 30,
(dollars in thousands)					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2020		2019		2020		2019		2020		2019
Medicaid	$	16	$	12	$	—	$	(3)	$	16	$	9
Medicare		643		467		—		(17)		643		450
Self-pay		89		11		(3)		—		86		11
Third party payers		2,949		1,571		(2,102)		(1,120)		847		451
Contract diagnostics		24		274		—		—		24		274
		3,721		2,335		(2,105)		(1,140)		1,616		1,195
Clinical research grants and other		29		4		—		—		29		4
	$	3,750	$	2,339	$	(2,105)	$	(1,140)	$	1,645	$	1,199

(dollars in thousands)	For the Six Months Ended June 30,
					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2020		2019		2020		2019		2020		2019
Medicaid	$	25	$	15	$	—	$	(3)	$	25	$	12
Medicare		1,168		861		—		(17)		1,168		844
Self-pay		139		15		(3)		—		136		15
Third party payers		4,757		2,588		(3,394)		(1,781)		1,363		807
Contract diagnostics		382		427		—		—		382		427
		6,471		3,906		(3,397)		(1,801)		3,074		2,105
Clinical research grants and other		53		11		—		—		53		11
	$	6,524	$	3,917	$	(3,397)	$	(1,801)	$	3,127	$	2,116

Schedule of Reported Revenues Net of Collection Allowance [Table Text Block]

	For the Three Months Ended June 30,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2020		2019		2020		2019		2020		2019
Medicaid	$	16	$	9	$	(16)	$	(9)	$	—	$	—
Medicare		643		450		(97)		(68)		546		382
Self-pay		86		11		—		—		86		11
Third party payers		847		451		(224)		(180)		623		271
Contract diagnostics		24		274		—		—		24		274
		1,616		1,195		(337)		(257)		1,279		938
Clinical research grants and other		29		4		—		—		29		4
	$	1,645	$	1,199	$	(337)	$	(257)	$	1,308	$	942

	For the Six Months Ended June 30,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2020		2019		2020		2019		2020		2019
Medicaid	$	25	$	12	$	(24)	$	(12)	$	1	$	—
Medicare		1,168		844		(175)		(127)		993		717
Self-pay		136		15		—		—		136		15
Third party payers		1,363		807		(404)		(322)		959		485
Contract diagnostics		382		427		—		—		382		427
		3,074		2,105		(603)		(461)		2,471		1,644
Clinical research grants and other		53		11		—		—		53		11
	$	3,127	$	2,116	$	(603)	$	(461)	$	2,524	$	1,655

Schedule of Receivables

(dollars in thousands)	June 30, 2020		December 31, 2019
Medicaid	$	128	$	107
Medicare		1,166		814
Self-pay		215		88
Third party payers		2,861		2,203
Contract diagnostic services		264		36
	$	4,634	$	3,248
Less allowance for doubtful accounts		(3,280)		(2,674)
Accounts receivable, net	$	1,354	$	574

Schedule of Allowance for Doubtful Accounts

			Allowance for
			Doubtful
(dollars in thousands)			Accounts
Balance, January 1, 2020			$	(2,674)
Collection Allowance:
Medicaid	$	(24)
Medicare		(175)
Third party payers		(404)
		(603)
Bad debt expense	$	(3)
Total charges				(606)
Balance, June 30, 2020			$	(3,280)

Schedule of Customer Revenue and Accounts Receivable Concentrations

	Net sales								Accounts receivable, as of
	Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,		December 31,
	2020		2019		2020		2019		2020		2019
Customer A	*		*		13	%	*		14	%	*
Customer B	*		11	%	*		*		*		17	%
Customer C	11	%	*		*		*		*		12	%
Customer D	*		29	%	*		26	%	*		*
Customer E	12	%	*		11	%	*		10	%	*
* represents less than 10%