Note 10 - Accrued Expenses and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	December 31,
	2016		2015
Accrued salaries and benefits	$	4,084	$	1,915
Accrued warranty		71		168
Accrued professional fee		790		252
Other payable		380		290
Other taxes payable		88		587
Current portion of rebate and guarantee from bus sales		273		266
Other current liabilities		115		40
Total accrued expenses and other liabilities	$	5,801	$	3,518
Other non-current liabilities	$	3,062	$	3,565

Schedule of Product Warranty Liability [Table Text Block]

	December 31,
	2016			2015
Beginning Balance – January 1,	$	168		$	173
Charges for accruals in the current period		91			265
Reductions for expired warranty or services provided		(188	)		(270	)
Ending Balance – December 31,	$	71		$	168