Basis of Presentation (Narrative) (Details) - USD ($)			3 Months Ended
	Aug. 23, 2007	Jun. 21, 2005	Jun. 30, 2016
Revolving Credit Facility [Member]
Variable Interest Entity [Line Items]
Credit facility, amount outstanding			$ 0
Revolving Credit Facility B [Member]
Variable Interest Entity [Line Items]
Credit facility, amount outstanding			30,000,000
Credit facility, fair value			$ 30,200,000
Revolving Credit Facility B [Member] | Minimum [Member]
Variable Interest Entity [Line Items]
Fair value inputs, discount rate			3.40%
Revolving Credit Facility B [Member] | Maximum [Member]
Variable Interest Entity [Line Items]
Fair value inputs, discount rate			5.00%
Hallmark Statutory Trust I [Member]
Variable Interest Entity [Line Items]
Proceeds from issuance of trust preferred securities		$ 30,000,000
Hallmark Statutory Trust II [Member]
Variable Interest Entity [Line Items]
Proceeds from issuance of trust preferred securities	$ 25,000,000
Subordinated Debt [Member]
Variable Interest Entity [Line Items]
Trust preferred securities, carrying value			$ 55,700,000
Trust preferred securities, fair value			$ 39,800,000
Current yield to maturity percentage			8.00%
Subordinated Debt [Member] | Hallmark Statutory Trust I [Member]
Variable Interest Entity [Line Items]
Payments to acquire trust preferred investments		$ 30,900,000
Subordinated Debt [Member] | Hallmark Statutory Trust II [Member]
Variable Interest Entity [Line Items]
Payments to acquire trust preferred investments	$ 25,800,000