INCOME TAXES (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Gross		$ 31,580	$ 35,730	$ 31,580
Deferred Tax Liabilities, Gross		(19,198)	(21,625)	(19,198)
Deferred Tax Assets, Valuation Allowance		(12,676)	(14,641)	(12,676)
Deferred Tax Liabilities, Net	[1]	(294)	(536)	(294)
Components of Deferred Tax Assets and Liabilities [Abstract]
Goodwill and intangible assets		16,375	13,267	16,375
Inventories		3,483	2,569	3,483
NOL carry forwards		2,345	10,529	2,345
Tax credit carry forwards		1,180	2,354	1,180
Stock award		1,049	827	1,049
Gain on sale of real estate		868	783	868
Obligation under operating leases		800	835	800
Accrued vacation		773	504	773
Accrued bonus		722	649	722
Other		547	426	547
Long-term contract costs		(7,652)	(11,781)	(7,652)
Depreciation		(8,108)	(6,857)	(8,108)
Valuation allowance		(12,676)	(14,641)	(12,676)
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Increase (Decrease) in Income Taxes Receivable			(6,527)
Deferred Tax Assets, Operating Loss Carryforwards, Domestic			10,001
Deferred Tax Assets, Operating Loss Carryforwards, State and Local			2,881
Federal [Abstract]
Current			304	(9,173)	$ (676)
Deferred			(14)	155	(6,066)
Provision for federal income taxes			290	(9,018)	(6,742)
State [Abstract]
Current			55	21	120
Deferred			7	44	(357)
Provision for state income taxes			62	65	(237)
Income Tax Reconciliation [Abstract]
Federal taxes			(661)	(13,270)	(22,912)
State and local taxes, net of federal benefit			(114)	358	(1,119)
Nondeductible goodwill impairment			0	9,254	0
Valuation allowance			1,809	(5,294)	17,718
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount			306	0	0
Research and experimental and other tax credits			(1,174)	(503)	(634)
Other			186	502	(32)
Provision (benefit) for income taxes		$ (6,396)	$ 352	$ (8,953)	$ (6,979)

[1] During 2015 the Company adopted FASB Accounting Standards Update No. 2015-17, which requires that the Consolidated Balance Sheets reflect all deferred income tax assets and liabilities as non-current. Prior year balances have been reclassified to reflect the current year presentation.