SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables)

9 Months Ended

Sep. 30, 2019

SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract]

Schedule of Net Revenues

	For the Three Months Ended September 30,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2019		2018		2019		2018		2019		2018
Medicaid	$	10	$	15	$	—	$	—	$	10	$	15
Medicare		373		288		—		—		373		288
Self-pay		5		48		—		—		5		48
Third party payers		490		289		—		—		490		289
Contract diagnostics		—		—		142		168		142		168
Service revenue, net	$	878	$	640	$	142	$	168	$	1,020	$	808

	For the Nine Months Ended September 30,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2019		2018		2019		2018		2019		2018
Medicaid	$	22	$	38	$	—	$	—	$	22	$	38
Medicare		1,217		703		—		—		1,217		703
Self-pay		20		94		—		—		20		94
Third party payers		1,297		639		—		—		1,297		639
Contract diagnostics		—		—		569		1,024		569		1,024
Service revenue, net	$	2,556	$	1,474	$	569	$	1,024	$	3,125	$	2,498

Schedule of Gross to Net Sales Adjustments

The following table presents our revenues initially recognized for each associated payer class during the three and nine months ended September 30, 2019 and 2018.

	For the Three Months Ended September 30,
(dollars in thousands)					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2019		2018		2019		2018		2019		2018
Medicaid	$	10	$	30	$	—	$	(15)	$	10	$	15
Medicare		373		293		—		(5)		373		288
Self-pay		5		48		—		—		5		48
Third party payers		1,701		713		(1,211)		(424)		490		289
Contract diagnostics		142		168		—		—		142		168
		2,231		1,252		(1,211)		(444)		1,020		808
Clinical research grants and other		26		15		—		—		26		15
	$	2,257	$	1,267	$	(1,211)	$	(444)	$	1,046	$	823

(dollars in thousands)	For the Nine Months Ended September 30,
					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2019		2018		2019		2018		2019		2018
Medicaid	$	25	$	71	$	(3)	$	(33)	$	22	$	38
Medicare		1,234		722		(17)		(19)		1,217		703
Self-pay		20		94		—		—		20		94
Third party payers		4,289		1,561		(2,992)		(922)		1,297		639
Contract diagnostics		569		1,024		—		—		569		1,024
		6,137		3,472		(3,012)		(974)		3,125		2,498
Clinical research grants and other		37		80		—		—		37		80
	$	6,174	$	3,552	$	(3,012)	$	(974)	$	3,162	$	2,578

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

	For the Three Months Ended September 30,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2019		2018		2019		2018		2019		2018
Medicaid	$	10	$	15	$	(10)	$	(15)	$	—	$	—
Medicare		373		288		(56)		(43)		317		245
Self-pay		5		48		—		—		5		48
Third party payers		490		289		(196)		(115)		294		174
Contract diagnostics		142		168		—		—		142		168
		1,020		808		(262)		(173)		758		635
Clinical research grants and other		26		15		—		—		26		15
	$	1,046	$	823	$	(262)	$	(173)	$	784	$	650

	For the Nine Months Ended September 30,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2019		2018		2019		2018		2019		2018
Medicaid	$	22	$	38	$	(22)	$	(38)	$	—	$	—
Medicare		1,217		703		(183)		(105)		1,034		598
Self-pay		20		94		—		—		20		94
Third party payers		1,297		639		(518)		(256)		779		383
Contract diagnostics		569		1,024		—		—		569		1,024
		3,125		2,498		(723)		(399)		2,402		2,099
Clinical research grants and other		37		80		—		—		37		80
	$	3,162	$	2,578	$	(723)	$	(399)	$	2,439	$	2,179

Schedule of Receivables

(dollars in thousands)	September 30, 2019		December 31, 2018
Medicaid	$	99	$	82
Medicare		764		633
Self-pay		75		108
Third party payers		2,071		1,382
Contract diagnostic services		116		193
	$	3,125	$	2,398
Less allowance for doubtful accounts		(2,432)		(1,708)
Accounts receivable, net	$	693	$	690

Schedule of Allowance for Doubtful Accounts

			Allowance for
			Doubtful
(dollars in thousands)			Accounts
Balance, January 1, 2019			$	(1,708)
Collection Allowance:
Medicaid	$	(22)
Medicare		(183)
Third party payers		(518)
		(723)
Bad debt expense	$	(1)
Total charges				(724)
Balance, September 30, 2019			$	(2,432)

Schedule of Customer Revenue and Accounts Receivable Concentrations

Customer revenue and accounts receivable concentration amounted to the following for the identified periods.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Percentage of net sales by customer:
Customer A	18	%	17	%	23	%	36	%
Customer B	11	%	*		*		*
* represents less than 10%

	September 30,		December 31,
	2019		2018
Percentage of total accounts receivable by customer:
Customer A	10	%	23	%
Customer B	11	%	*
* represents less than 10%