SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE - Schedule of Sales, Net of Collection Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	$ 7,021	$ 5,629	$ 13,982	$ 10,540
Allowance for credit losses		25	(250)	43
Net sales	7,021	5,654	13,732	10,583
Medicaid
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Allowance for credit losses			(1)	33
Medicare
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Allowance for credit losses			(182)	9
Third party payers
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Allowance for credit losses			(67)	1
Service revenue, net
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	6,115	5,005	12,417	9,262
Allowance for credit losses		25	(250)	43
Net sales	6,115	5,030	12,167	9,305
Service revenue, net \| Medicaid
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	31	8	56	13
Allowance for credit losses		15	(1)	33
Net sales	31	23	55	46
Service revenue, net \| Medicare
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	2,662	2,284	5,612	4,188
Allowance for credit losses		9	(182)	9
Net sales	2,662	2,293	5,430	4,197
Service revenue, net \| Self-pay
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	6	5	11	10
Net sales	6	5	11	10
Service revenue, net \| Third party payers
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	3,351	2,685	6,618	5,010
Allowance for credit losses		1	(67)	1
Net sales	3,351	2,686	6,551	5,011
Service revenue, net \| Contract diagnostics and other
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	65	23	120	41
Net sales	65	23	120	41
Product
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE
Revenue, net of contractual allowances and adjustments	906	624	1,565	1,278
Net sales	$ 906	$ 624	$ 1,565	$ 1,278