The Business (Details) (USD $)	3 Months Ended				3 Months Ended
	Mar. 31, 2013 segment employee	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2013 Minimum [Member] enterprise country	Mar. 31, 2013 Comerica Bank [Member] Revolving Credit Facility [Member]	Oct. 03, 2012 Comerica Bank [Member] Revolving Credit Facility [Member]	Mar. 31, 2013 Comerica Revolver [Member] Comerica Bank [Member] Revolving Credit Facility [Member]	Dec. 31, 2012 Comerica Revolver [Member] Comerica Bank [Member] Revolving Credit Facility [Member]	Mar. 31, 2013 Comerica Revolver [Member] Comerica Bank [Member] Debt [Member]	Mar. 31, 2013 Balance Required to Pay Dividends [Member]
Number of different enterprises to which the company delivers service					600
Number of countries in which the company operates					68
Entity Number of Employees	130
Number of operating segments	1
Net Income (Loss) Attributable to Parent	$ (1,985,000)	$ 172,000
Net Cash Provided by (Used in) Operating Activities	264,000	365,000
Current portion of long-term debt	1,197,000		1,397,000
Loans Payable to Bank								780,000	780,000	417,000
Interest Payable, Current	1,122,000
Cash	2,166,000	2,049,000	2,218,000	1,818,000							4,174,000
Working capital	548,000
Accumulated deficit	(165,633,000)		(163,648,000)
Revolving loan facility, maximum borrowing capacity							3,000,000.0
Revolving loan facility, unused borrowing capacity						419,000
Dividends Payable, Current	$ 105,000		$ 0