INVESTMENT SECURITIES (Details 2) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Investment securities activity:
Gross gains realized		$ 30
Gross losses realized		(30)
Net realized gains

This item represents the total realized (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

No definition available.

Name:	nwpp_MarketableSecuritiesRealizedLoss
Namespace Prefix:	nwpp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration