Note 4 - Contract Receivables (Tables)

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	June 30, 2014			December 31, 2013
Billed	$	140,695		$	106,658
Unbilled		114,291			100,157
Allowance for doubtful accounts		(1,610	)		(1,753	)
Contract receivables, net	$	253,376		$	205,062