CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Revenue, net of contractual allowances and adjustments	$ 6,961	$ 4,911
Adjustment for allowance for credit losses	(250)	18
Net sales	6,711	4,929
Total cost of sales	3,986	2,789
Gross profit	2,725	2,140
OPERATING EXPENSES:
Operating expenses	4,153	2,999
OPERATING LOSS	(1,428)	(859)
OTHER EXPENSE:
Interest expense, net	(15)	(25)
LOSS BEFORE INCOME TAXES	(1,443)	(884)
NET LOSS	$ (1,443)	$ (884)
Net loss per common share:
BASIC LOSS PER COMMON SHARE	$ (0.81)	$ (0.59)
BASIC WEIGHTED-AVERAGE SHARES OF COMMON STOCK OUTSTANDING	1,783,080	1,502,652
DILUTED LOSS PER COMMON SHARE	$ (0.81)	$ (0.59)
DILUTED WEIGHTED-AVERAGE SHARES OF COMMON STOCK OUTSTANDING	1,783,080	1,502,652
Service revenue, net
Revenue, net of contractual allowances and adjustments	$ 6,302	$ 4,257
Adjustment for allowance for credit losses	(250)	18
Net sales	6,052	4,275
Total cost of sales	3,705	2,466
Product revenue
Revenue, net of contractual allowances and adjustments	659	654
Net sales	659	654
Total cost of sales	$ 281	$ 323

Allowance for doubtful accounts, revenue

No definition available.

Name:	prpo_AllowanceForDoubtfulAccountsRevenue
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.