Note 3 - Securities - Restricted Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Stock in Atlantic Community Banker's Bank	$ 10	$ 10
Restricted stock, at cost	3,120	3,123
Federal Home Loan Bank of Pittsburgh [Member]
Stock in Federal Home Loan Bank of Pittsburgh	$ 3,110	$ 3,113

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 325
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809

Name:	us-gaap_FederalHomeLoanBankStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant