Nature of Business and Summary of Significant Accounting Policies (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012 Subsidiaries	Dec. 31, 2012 Segment Subsidiaries	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Cash restricted	$ 600,000	$ 600,000
Nature of Business and Summary of Significant Accounting Policies (Textual) [Abstract]
Number of wholly owned subsidiaries	2	2
Cash equivalents, original maturities of highly liquid investments		3 months
Accounts receivables payment period from invoice date		30 days
Number of reportable segments		3
Amortization of Deferred Finance Cost	141,000	227,000	91,000
Provision for Estimated losses on uncompleted contracts		0	0
Advertisement expense		189,000	205,000
Undistributed Earnings of Foreign Subsidiaries	2,600,000	2,600,000
Shares not included in computation of diluted Earning per share		100,000	400,000
Interest Expenses added back in computation of Diluted earning per share		303,000	375,000
Unvested restricted stock	0	0
Conversion of the convertible Investor Notes		2,106	2,605
Foreign Currency Transaction Gain (Loss)		$ (149,000)	$ 115,000
Non forfeitable dividend rights with holders of common stock		one-for-one basis
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful Life		17 years
Customer lists [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful Life		5 years
Employment Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful Life		3 years
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful Life		7 years
Building and improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life		40 years
Building and improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life		10 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life		15 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life		2 years