7. Accrued liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	December 31,
(In thousands)	2013		2012
Payroll and fringe benefits	$	1,447	$	1,770
Warranty		282		173
Professional and consulting		139		189
Other		347		795
	$	2,215	$	2,927