Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Net sales	$ 8,071,000	$ 7,145,000
Cost of sales	4,396,000	5,309,000
Gross profit	3,675,000	1,836,000
Operating expenses:
General and administrative	2,031,000	1,372,000
Sales and marketing	1,408,000	1,423,000
Research and development	187,000	208,000
Total operating expenses	3,626,000	3,003,000
Income (loss) from operations	49,000	(1,167,000)
Interest expense, net	185,000	130,000
Loss before income taxes	(136,000)	(1,297,000)
Income tax benefit	(3,000)	(22,000)
Net loss	$ (133,000)	$ (1,275,000)
Net loss per share:
Basic (in dollars per share)	$ (0.02)	$ (0.22)
Diluted (in dollars per share)	$ (0.02)	$ (0.22)
Shares used in calculation of net loss per share:
Basic (in shares)	5,919	5,785
Diluted (in shares)	5,919	5,785