CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 5,283	$ 8,828	$ 10,025	$ 14,406
Cost of goods sold	3,747	5,353	7,109	9,174
Gross profit	1,536	3,475	2,916	5,232
Operating expenses:
Selling	773	881	1,616	1,693
General and administrative	1,026	1,252	2,082	2,470
Research and development	925	929	1,729	1,769
Total Operating expenses	2,724	3,062	5,427	5,932
Earnings (loss) from operations	(1,188)	413	(2,511)	(700)
Other expense - interest expense (net)	(74)	(66)	(166)	(114)
Earnings (loss) before income taxes	(1,262)	347	(2,677)	(814)
Provision (benefit) for income taxes	0	0	0	0
Net earnings (loss)	$ (1,262)	$ 347	$ (2,677)	$ (814)
Basic and diluted net earnings (loss) per share (in dollars per share)	$ (0.20)	$ 0.06	$ (0.43)	$ (0.13)
Basic weighted averages shares outstanding (in shares)	6,263	6,216	6,263	6,216
Diluted weighted average shares outstanding (in shares)	6,263	6,240	6,263	6,216