Pensions (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2015
Pensions [Abstract]
Contributions to the plan	$ 68,000		$ 650,000
Pension settlement (costs) benefit	43,000	$ (1,222,000)
Pension liability adjustment gains	$ (4,147,836)