Schedule III - Supplemental Financial Information (Details Textual) - USD ($)	3 Months Ended			6 Months Ended	12 Months Ended
	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Tubular And Pipe Products [Member]
Inventory, LIFO Reserve, Effect on Income, Net		$ 3,347,000
Goodwill, Impairment Loss		16,451,000	$ 23,836,000	$ 16,500,000	$ 16,451,000	$ 23,836,000
Impairment of Intangible Assets (Excluding Goodwill)		$ 8,000,000
Inventory, LIFO Reserve, Period Charge			$ 365,000
Specialty Metal Flat Products [Member]
Goodwill, Impairment Loss	$ 500,000				500,000
Goodwill, Impairment Loss					16,951,000	23,836,000
Impairment of Intangible Assets (Excluding Goodwill)					8,000,000
Inventory, LIFO Reserve, Period Charge					$ 3,300,000	$ 365,000