SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables)

3 Months Ended

Mar. 31, 2022

SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract]

Schedule of Net Revenues

	For the Three Months Ended March 31,
(dollars in thousands)	Diagnostic Testing				Biomarker Testing				Total
	2022		2021		2022		2021		2022		2021
Medicaid	$	15	$	13	$	—	$	—	$	15	$	13
Medicare		974		984		—		—		974		984
Self-pay		49		47		—		—		49		47
Third party payers		967		900		—		—		967		900
Contract diagnostics		—		—		—		—		—		—
Service revenue, net	$	2,005	$	1,944	$	—	$	—	$	2,005	$	1,944

Schedule of Gross to Net Sales Adjustments

	For the Three Months Ended March 31,
(dollars in thousands)					Contractual Allowances and				Revenues, net of Contractual
	Gross Revenues				adjustments				Allowances and adjustments
	2022		2021		2022		2021		2022		2021
Medicaid	$	15	$	13	$	—	$	—	$	15	$	13
Medicare		974		984		—		—		974		984
Self-pay		49		47		—		—		49		47
Third party payers		3,385		3,133		(2,418)		(2,233)		967		900
Contract diagnostics		—		—		—		—		—		—
		4,423		4,177		(2,418)		(2,233)		2,005		1,944
Other		522		167		—		—		522		167
	$	4,945	$	4,344	$	(2,418)	$	(2,233)	$	2,527	$	2,111

Schedule of Reported Revenues Net of Collection Allowance

	For the Three Months Ended March 31,
	Revenues, net of
(dollars in thousands)	Contractual Allowances				Allowances for doubtful
	and adjustments				accounts				Total
	2022		2021		2022		2021		2022		2021
Medicaid	$	15	$	13	$	(7)	$	(8)	$	8	$	5
Medicare		974		984		(24)		(99)		950		885
Self-pay		49		47		—		—		49		47
Third party payers		967		900		(49)		(180)		918		720
Contract diagnostics		—		—		—		—		—		—
		2,005		1,944		(80)		(287)		1,925		1,657
Other		522		167		—		—		522		167
	$	2,527	$	2,111	$	(80)	$	(287)	$	2,447	$	1,824

Schedule of Receivables

(dollars in thousands)	March 31, 2022		December 31, 2021
Medicaid	$	45	$	45
Medicare		963		727
Self-pay		229		139
Third party payers		1,596		2,111
Contract diagnostic services and other		347		159
	$	3,180	$	3,181
Less allowance for doubtful accounts		(2,026)		(2,484)
Accounts receivable, net	$	1,154	$	697

Schedule of Allowance for Doubtful Accounts

The following table presents the roll-forward of the allowance for doubtful accounts for the three months ended March 31, 2022.

			Allowance for
			Doubtful
(dollars in thousands)			Accounts
Balance, January 1, 2022			$	(2,484)
Collection Allowance:
Medicaid	$	(7)
Medicare		(24)
Third party payers		(49)
		(80)
Bad debt expense	$	2
Total charges				(78)
Other				536
Balance, March 31, 2022			$	(2,026)

Schedule of Customer Revenue and Accounts Receivable Concentrations

	Net sales			Accounts receivable, as of
	Three Months Ended
	March 31,			March 31,		December 31,
	2022		2021	2022		2021
Customer A	10	%	*	19	%	21	%
Customer B	*		*	11	%	*
Customer C	*		*	*		12	%
* represents less than 10%