Pension Plan (Details) - USD ($)	1 Months Ended	3 Months Ended	4 Months Ended
	Apr. 30, 2016	Mar. 31, 2016	Apr. 30, 2016
Pension Plan (Details) [Line Items]
Defined Benefit Pension Plan Liabilities, Current		$ 1,000,000
Defined Benefit Pension Plan, Liabilities, Noncurrent		4,100,000
Defined Benefit Plan, Expected Contributions in Current Fiscal Year		1,000,000
Pension Contributions		$ 197,000	$ 416,000
Subsequent Event [Member]
Pension Plan (Details) [Line Items]
Pension Contributions	$ 219,000