Segment Data (Reconciliation of Segment Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Corporate and Other
Revenues	$ 15,290	$ 20,617	$ 18,670	$ 15,634	$ 18,576	$ 16,751	$ 15,728	$ 16,587	$ 70,211	$ 67,642	$ 72,210
Operating (Loss) Profit									(12,527)	(19,921)	(31,936)
Depreciation and Amortization									2,332	4,165	4,183
Capital Expenditures									660	401	2,006
U.S. Markets
Corporate and Other
Revenues									17,852	38,841	37,778
Operating (Loss) Profit									(1,357)	(4,958)	(12,542)
Depreciation and Amortization									359	1,168	1,711
Capital Expenditures									150	72	626
Engineered Systems
Corporate and Other
Revenues									29,501	26,325	33,454
Operating (Loss) Profit									(3,647)	(6,982)	(12,431)
Depreciation and Amortization									1,249	1,987	1,404
Capital Expenditures									224	43	495
Distribution Services
Corporate and Other
Revenues									22,858	2,476	978
Operating (Loss) Profit									(927)	(632)	(455)
Depreciation and Amortization									148	71	32
Capital Expenditures									184	10	40
Corporate and Other
Corporate and Other
Revenues									0	0	0
Operating (Loss) Profit									(6,596)	(7,349)	(6,508)
Depreciation and Amortization									576	939	1,036
Capital Expenditures									$ 102	$ 276	$ 845