Note 13 - Significant Customers (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Accounts Receivable | Customer C
Concentration Risk, Percentage	23.00%
Accounts Receivable | Customer F
Concentration Risk, Percentage	12.00%
Accounts Receivable | Customer A
Concentration Risk, Percentage		11.00%
Accounts Receivable | Customer B
Concentration Risk, Percentage		30.00%
Costs And Estimated Earnings In Excess of Billings | Customer C
Concentration Risk, Percentage	37.00%	16.00%
Costs And Estimated Earnings In Excess of Billings | Customer G
Concentration Risk, Percentage	15.00%
Costs And Estimated Earnings In Excess of Billings | Customer A
Concentration Risk, Percentage		16.00%
Costs And Estimated Earnings In Excess of Billings | Customer D
Concentration Risk, Percentage		14.00%
Costs And Estimated Earnings In Excess of Billings | Customer E
Concentration Risk, Percentage		10.00%
Sales Revenue, Net | Customer Concentration Risk
Concentration Risk, Percentage	0.00%	0.00%