Note 13 - Significant Customers (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Customer Concentration Risk
Concentration Risk, Percentage	0.00%	0.00%
Accounts Receivable | Customer A
Concentration Risk, Percentage	11.00%	13.00%
Accounts Receivable | Customer B
Concentration Risk, Percentage	30.00%
Costs and Estimated Earnings in Excess of Billings | Customer A
Concentration Risk, Percentage	16.00%
Costs and Estimated Earnings in Excess of Billings | Customer C
Concentration Risk, Percentage	16.00%
Costs and Estimated Earnings in Excess of Billings | Customer D
Concentration Risk, Percentage	14.00%
Costs and Estimated Earnings in Excess of Billings | Customer E
Concentration Risk, Percentage	10.00%
Costs and Estimated Earnings in Excess of Billings | Customer F
Concentration Risk, Percentage		21.00%
Costs and Estimated Earnings in Excess of Billings | Customer G
Concentration Risk, Percentage		11.00%
Costs and Estimated Earnings in Excess of Billings | Customer H
Concentration Risk, Percentage		10.00%