SEGMENT INFORMATION (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Financial results of reportable segments
Sales	$ 68,924,000		$ 79,784,000		$ 218,625,000		$ 226,358,000
Depreciation and amortization					7,317,000		6,849,000
Segment (loss) income	(6,878,000)		2,568,000		(5,533,000)		5,685,000
Capital expenditures					1,830,000		2,192,000
Segment assets	319,940,000				319,940,000				344,183,000
Reconciliation of segment income to consolidated income before income taxes
(Loss) income from continuing operations before income taxes	(7,034,000)		2,257,000		(6,055,000)		4,887,000
Operating segment
Financial results of reportable segments
Sales	68,924,000		79,784,000		218,625,000		226,358,000
Depreciation and amortization	2,352,000		2,354,000		7,171,000		6,437,000
Segment (loss) income	(756,000)		3,713,000		2,965,000		10,688,000
Capital expenditures	706,000		565,000		1,830,000		2,192,000
Segment assets	300,303,000	[1]	324,477,000	[1]	300,303,000	[1]	324,477,000	[1]	303,423,000
Reconciliation of segment income to consolidated income before income taxes
Unallocated corporate expense	(859,000)		(415,000)		(3,151,000)		(1,931,000)
Interest expense, net	156,000		311,000		522,000		798,000
Other unallocated income (expense)	(5,263,000)		(730,000)		(5,347,000)		(3,072,000)
(Loss) income from continuing operations before income taxes	(7,034,000)		2,257,000		(6,055,000)		4,887,000
Operating segment | MMS
Financial results of reportable segments
Sales	52,353,000		64,382,000		167,977,000		191,272,000
Depreciation and amortization	1,722,000		1,742,000		5,255,000		5,102,000
Segment (loss) income	(2,094,000)		2,149,000		(2,107,000)		6,224,000
Capital expenditures	457,000		540,000		1,136,000		1,676,000
Segment assets	246,429,000	[1]	268,802,000	[1]	246,429,000	[1]	268,802,000	[1]
Operating segment | ATA
Financial results of reportable segments
Sales	16,681,000		15,462,000		50,909,000		35,448,000
Depreciation and amortization	630,000		612,000		1,916,000		1,335,000
Segment (loss) income	1,338,000		1,564,000		5,072,000		4,464,000
Capital expenditures	249,000		25,000		694,000		516,000
Segment assets	53,874,000	[1]	55,675,000	[1]	53,874,000	[1]	55,675,000	[1]
Inter-Segment Eliminations
Financial results of reportable segments
Sales	(110,000)		(60,000)		(261,000)		(362,000)
Unallocated assets
Financial results of reportable segments
Segment assets	19,637,000				19,637,000				40,760,000
Reconciliation of segment income to consolidated income before income taxes
Cash	$ 15,000,000				$ 15,000,000				$ 34,700,000

[1] Segment assets primarily consist of restricted cash, accounts receivable, inventories, prepaid and other assets, property, plant and equipment, and intangible assets. Unallocated assets primarily include, cash and cash equivalents, corporate property, plant and equipment, deferred income taxes, and other non-current assets.