Note 7 - Summary of Accrued Liabilities (Details) - USD ($)	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015
Payroll and related		$ 1,200,915	$ 330,916
Deferred revenue		339,095	51,345
Short-term warranty reserve	$ 289,660	261,328	289,660
Accrued contract costs		98,517	197,034
Other			1,600
Total		1,899,855	870,555
Deferred rent		104,119	121,996
Long-term warranty reserve	$ 25,958	52,951	25,958
Total		$ 157,070	$ 147,954