SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

Dec. 31, 2021

SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract]

Schedule of Net Revenues

	For the Year Ended December 31,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2021		2020		2021		2020		2021		2020
Medicaid	$	43	$	53	$	—	$	—	$	43	$	53
Medicare		3,838		2,882		—		—		3,838		2,882
Self-pay		234		408		—		—		234		408
Third party payers		3,612		3,442		—		—		3,612		3,442
Contract diagnostics		—		—		56		426		56		426
Service revenue, net	$	7,727	$	6,785	$	56	$	426	$	7,783	$	7,211

Schedule of Gross to Net Sales Adjustments

	For the Year Ended December 31,
(dollars in thousands)					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2021		2020		2021		2020		2021		2020
Medicaid	$	43	$	53	$	—	$	—	$	43	$	53
Medicare		3,838		2,882		—		—		3,838		2,882
Self-pay		234		411		—		(3)		234		408
Third party payers		12,597		11,891		(8,985)		(8,449)		3,612		3,442
Contract diagnostics		56		426		—		—		56		426
		16,768		15,663		(8,985)		(8,452)		7,783		7,211
Other		914		220		—		—		914		220
	$	17,682	$	15,883	$	(8,985)	$	(8,452)	$	8,697	$	7,431

Schedule of Reported Revenues Net of Collection Allowance

	For the Year Ended December 31,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2021		2020		2021		2020		2021		2020
Medicaid	$	43	$	53	$	(5)	$	(53)	$	38	$	—
Medicare		3,838		2,882		(58)		(387)		3,780		2,495
Self-pay		234		408		—		—		234		408
Third party payers		3,612		3,442		215		(899)		3,827		2,543
Contract diagnostics		56		426		—		—		56		426
		7,783		7,211		152		(1,339)		7,935		5,872
Other		914		220		—		—		914		220
	$	8,697	$	7,431	$	152	$	(1,339)	$	8,849	$	6,092

Schedule of Receivables

The following summarizes the mix of receivables as of December 31, 2021 and 2020:

(dollars in thousands)	December 31, 2021		December 31, 2020
Medicaid	$	45	$	131
Medicare		727		1,054
Self-pay		139		276
Third party payers		2,111		3,373
Contract diagnostic services and other		159		53
	$	3,181	$	4,887
Less allowance for doubtful accounts		(2,484)		(4,013)
Accounts receivable, net	$	697	$	874

Schedule of Allowance for Doubtful Accounts

The following table presents the roll-forward of the allowance for doubtful accounts for the year ended December 31, 2021:

			Allowance for
			Doubtful
(dollars in thousands)			Accounts
Balance, January 1, 2021			$	(4,013)
Collection Allowance:
Medicaid	$	(5)
Medicare		(58)
Third party payers		215
		152
Bad debt expense	$	(2)
Total charges				150
Write-offs				1,379
Balance, December 31, 2021			$	(2,484)

Schedule of Customer Revenue and Accounts Receivable Concentrations

	Net sales		Accounts receivable, as of
	Years Ended
	December 31,		December 31,		December 31,
	2021	2020	2021		2020
Customer A	*	*	21	%	*
Customer B	*	*	12	%	*
* represents less than 10%