7. Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues
North America	$ 33,889	$ 32,444	$ 93,979	$ 99,795
India	5,488	6,066	11,783	11,508
Total revenues	39,377	38,510	105,762	111,303
Cost of goods sold
North America	30,391	31,603	86,174	97,489
India	5,320	5,873	11,892	11,059
Total cost of goods sold	35,711	37,476	98,066	108,548
Gross profit (loss)
North America	3,498	841	7,805	2,306
India	168	193	(109)	449
Total gross profit (loss)	$ 3,666	$ 1,034	$ 7,696	$ 2,755