Accounts Payable and Accrued Expenses (Details - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Account payable	$ 652	$ 956
Accrued franchise taxes	342	445
Accrued directors fees	90	0
Accrued professional fees	469	0
Warranty reserve	49	46
Accrued salaries and related	1,152	2,064
Warrant liability	90	0
Other accrued expenses	188	623
Total accounts payable and accrued expenses	$ 3,032	$ 4,134