Legal Proceedings (Details Textual) $ in Thousands			3 Months Ended
	Jul. 13, 2015 USD ($)	Jan. 06, 2015 USD ($) plaintiff	Jun. 30, 2013 shareholder_class_action	Jun. 30, 2015 USD ($)	Jun. 10, 2013 shareholder_class_action	May. 07, 2013 shareholder_class_action
Plaintiffs that have Separately Sought Damages
Loss Contingencies [Line Items]
Amount plaintiffs requested in fees		$ 300
Federal Shareholder Derivative Settlement
Loss Contingencies [Line Items]
Number of shareholder class actions filed | shareholder_class_action			2
Number of actions | shareholder_class_action					2
Number of plaintiffs | plaintiff		3
Amount plaintiffs requested in fees		$ 1,300
Federal Shareholder Derivative Settlement | Plaintiffs that have Separately Sought Damages
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff		1
Federal Shareholder Derivative Settlement | Accounts Payable and Accrued Liabilities
Loss Contingencies [Line Items]
Accrued liability amount				$ 1,100
Federal Shareholder Derivative Settlement | Trade and Other Accounts Receivable
Loss Contingencies [Line Items]
Amount of corresponding receivable from insurance carrier				$ 1,100
Federal Shareholder Derivative Settlement | Subsequent Event
Loss Contingencies [Line Items]
Fee award amount	$ 1,100
State Shareholder Derivative Matter
Loss Contingencies [Line Items]
Number of shareholder class actions filed | shareholder_class_action			2
Number of actions | shareholder_class_action						2