Borrowings - Amount of FHLB of Indianapolis/Pittsburgh Stock Purchased, Collateral Pledged and Assets Related to MICO's/Atlantic States Agreement (Detail) (Lines of Credit [Member], USD $)	Mar. 31, 2014
MICO [Member] | Indianapolis [Member]
Amount of FHLB of Indianapolis/Pittsburgh stock purchased, collateral pledged and assets related to MICO's/Atlantic States Agreement
FHLB stock purchased and owned as part of the agreement	$ 252,100
Collateral pledged, at par	3,700,000
Borrowing capacity currently available	2,395,543
Atlantic States [Member] | Pittsburgh [Member]
Amount of FHLB of Indianapolis/Pittsburgh stock purchased, collateral pledged and assets related to MICO's/Atlantic States Agreement
FHLB stock purchased and owned as part of the agreement	870,300
Collateral pledged, at par	19,000,000
Borrowing capacity currently available	$ 125,191