5. Prepaid Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid rent	$ 134	$ 376
Prepaid commissions	507	456
Prepaid software support	66	181
Prepaid software subscription	13	103
Prepaid inventory deposits	150	0
Other prepaid expenses	242	218
Total prepaid assets	$ 1,112	$ 1,334