Note 4 - Accounts Receivable

6 Months Ended

Jun. 30, 2012

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

4.    Accounts Receivable

The Company’s accounts receivable are comprised as follows:

	June 30, 2012			December 31, 2011
Billed	$	27,671		$	28,460
Accrued and unbilled		3,941			3,143
Work-in-progress		9,863			8,883
Allowance for doubtful accounts and sales discounts		(1,489	)		(1,455	)
Accounts receivable, net	$	39,986		$	39,031

Unbilled receivables primarily represent revenues earned whereby those services are ready to be billed as of the balance sheet ending date.  Work-in-process primarily represents revenues earned under contracts which the Company is contractually precluded from invoicing until future dates as project milestones are realized.