CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS - Note 4	6 Months Ended
Jun. 30, 2017
Risks and Uncertainties [Abstract]
CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS - Note 4	4. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS Concentration of credit risk Financial instruments that potentially subject us to a concentration of credit risk are primarily cash equivalents and accounts receivable. We typically do not require collateral from our customers. As of June 30, 2017, our cash and cash equivalents are comprised of operating checking accounts and short-term, highly rated money market savings accounts. Concentration of major customers and suppliers For the three and six months ended June 30, 2017, one commercial customer accounted for $769,000 and $973,000 in revenue, representing 53% and 43% of our total revenue, respectively. Additionally, a second commercial customer accounted for $345,000 and $880,000 in revenue, representing 24% and 39% of our total revenue for the three and six months ended June 30, 2017, respectively. For the three and six months ended June 30, 2016, one commercial customer accounted for $3.5 million and $6.8 million in revenue, representing 84% and 87% of our total revenue, respectively. Additionally, a second commercial customer accounted for $486,000 and $859,000 in revenue, representing 12 % and 11% of our total revenue for the three and six months ended June 30, 2016, respectively. At June 30, 2017, one commercial customer accounted for $510,000, or 63% of our net accounts receivable balance, a second commercial customer accounted for $182,000, or 23% of our net accounts receivable balance, and a third commercial customer accounted for $92,000, or 11% of our net accounts receivable balance. A significant concentration of our components and the products we sell are currently manufactured and obtained from single or limited-source suppliers. The loss of any single or limited- source supplier, the failure of any of these suppliers to perform as expected, or the disruption in the supply chain of components from these suppliers could subject us to risks and uncertainties including, but not limited to, increased cost of sales, possible loss of revenues, or significant delays in product deliveries, any of which could adversely affect our financial condition and operating results.

CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS - Note 4

6 Months Ended

Jun. 30, 2017

CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS - Note 4

4. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND SUPPLIERS

Concentration of credit risk

Financial instruments that potentially subject us to a concentration of credit risk are primarily cash equivalents and accounts receivable. We typically do not require collateral from our customers. As of June 30, 2017, our cash and cash equivalents are comprised of operating checking accounts and short-term, highly rated money market savings accounts.

Concentration of major customers and suppliers

For the three and six months ended June 30, 2017, one commercial customer accounted for $769,000 and $973,000 in revenue, representing 53% and 43% of our total revenue, respectively. Additionally, a second commercial customer accounted for $345,000 and $880,000 in revenue, representing 24% and 39% of our total revenue for the three and six months ended June 30, 2017, respectively.

For the three and six months ended June 30, 2016, one commercial customer accounted for $3.5 million and $6.8 million in revenue, representing 84% and 87% of our total revenue, respectively. Additionally, a second commercial customer accounted for $486,000 and $859,000 in revenue, representing 12 % and 11% of our total revenue for the three and six months ended June 30, 2016, respectively.

At June 30, 2017, one commercial customer accounted for $510,000, or 63% of our net accounts receivable balance, a second commercial customer accounted for $182,000, or 23% of our net accounts receivable balance, and a third commercial customer accounted for $92,000, or 11% of our net accounts receivable balance.

A significant concentration of our components and the products we sell are currently manufactured and obtained from single or limited-source suppliers. The loss of any single or limited- source supplier, the failure of any of these suppliers to perform as expected, or the disruption in the supply chain of components from these suppliers could subject us to risks and uncertainties including, but not limited to, increased cost of sales, possible loss of revenues, or significant delays in product deliveries, any of which could adversely affect our financial condition and operating results.