7. ALLOWANCE FOR LOAN LOSSES - Summary of Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2016	Dec. 31, 2015
Balance, beginning of year	$ 7,493	$ 9,922
Charge Offs	(778)	(2,360)
Recoveries	434	2,131
Advances
Provision for loan losses	(500)	(2,200)
Balance, End of period	6,649	7,493
Real Estate [Member]
Balance, beginning of year	6,060	8,256
Charge Offs	(755)	(2,167)
Recoveries	369	675
Advances
Provision for loan losses	(345)	(704)
Balance, End of period	5,329	6,060
Commercial Real Estate [Member]
Balance, beginning of year	266	457
Charge Offs	(5)	(92)
Recoveries	48	1,412
Advances
Provision for loan losses	(110)	(1,511)
Balance, End of period	199	266
Commercial Real Estate [Member] \| Real Estate [Member]
Balance, beginning of year	2,384	4,418
Charge Offs	(327)	(724)
Recoveries	185	147
Advances
Provision for loan losses	(320)	(1,457)
Balance, End of period	1,922	2,384
Construction and Land Development \| Real Estate [Member]
Balance, beginning of year	332	199
Charge Offs	(5)	(226)
Recoveries	18	215
Advances
Provision for loan losses	(18)	144
Balance, End of period	327	332
Residential 1-4 Family \| Real Estate [Member]
Balance, beginning of year	2,437	2,572
Charge Offs	(411)	(743)
Recoveries	65	93
Advances
Provision for loan losses	96	515
Balance, End of period	2,187	2,437
Multifamily \| Real Estate [Member]
Balance, beginning of year	232	154
Charge Offs	(10)	(384)
Recoveries		6
Advances
Provision for loan losses	36	456
Balance, End of period	258	232
Farmland \| Real Estate [Member]
Balance, beginning of year	675	913
Charge Offs	(2)	(90)
Recoveries	101	214
Advances
Provision for loan losses	(139)	(362)
Balance, End of period	635	675
Agriculture
Balance, beginning of year	124	125
Charge Offs
Recoveries	4	3
Advances
Provision for loan losses	91	(4)
Balance, End of period	219	124
Consumer Installment Loans
Balance, beginning of year	128	171
Charge Offs	(18)	(101)
Recoveries	13	41
Advances
Provision for loan losses	(3)	17
Balance, End of period	120	128
Other Loans
Balance, beginning of year	1	1
Charge Offs
Recoveries
Advances
Provision for loan losses	(1)
Balance, End of period		1
Unallocated
Balance, beginning of year	914	912
Charge Offs
Recoveries
Advances
Provision for loan losses	(132)	2
Balance, End of period	$ 782	$ 914

Financing receivable, allowance for credit losses, advances on loans with off balance sheet provision.

No definition available.

Name:	NWPP_FinancingReceivableAllowanceForCreditLossesAdvancesOnLoansWithOffBalanceSheetProvision
Namespace Prefix:	NWPP_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

+ Details

Name:	us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

+ Details

Name:	us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_RealEstateInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_MultifamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=NWPP_FarmlandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=NWPP_AgricultureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConsumerLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=NWPP_OtherLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_UnallocatedFinancingReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: