General and Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) Segment shares	Dec. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment	1
Accounts Receivable [Abstract]
Percentage of initial payment by factor of U.S. Federal government receivables	90.00%
Percentage of initial payment by factor of commercial prime contractors	85.00%
Maximum limit of sold receivables	$ 10,000,000
Sold receivables during the period	3,900,000
Loss recognized in selling, general and administrative expenses	13,000
Inventories [Abstract]
Gross inventory	10,000,000	$ 5,200,000
Inventory valuation reserves	$ 1,682,000	1,672,000
Goodwill and Other Intangible Assets [Abstract]
Estimated useful life of intangible asset	5 years
Goodwill amortization period for income tax purposes	15 years
Accumulated Other Comprehensive Income [Abstract]
Cumulative foreign currency translation loss	$ (74,000)	(82,000)
Cumulative actuarial gain on pension liability adjustment	107,000	107,000
Accumulated other comprehensive income	$ 33,000	$ 25,000
Restricted Stock Grants [Member]
Restricted Stock Grants [Abstract]
Restricted stock outstanding (in shares) | shares	19,047,259
Restricted stock vested on date of grant	25.00%
Restricted stock vest on anniversary of the date of grant	25.00%