Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 117	$ (750)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	83	93
Loss on disposal of assets	5	15
Provision for inventory obsolescence	132	339
Recovery of bad debts and returns	(12)	(23)
Share based compensation		2
Changes in operating assets and liabilities:
Accounts receivable	225	(15)
Inventories	118	228
Prepaid expenses and other current assets	73	56
Accounts payable	(55)	(110)
Accrued payroll and related liabilities	64	(110)
Deferred service revenue	58	(135)
Other accrued liabilities	(40)	(22)
Total adjustments	651	318
Net cash provided by (used in) operating activities	768	(432)
Cash flows from investing activities:
Purchases of equipment	(2)	(27)
Net cash used in investing activities	(2)	(27)
Net increase (decrease) in cash, restricted cash and cash equivalents	766	(459)
Cash, restricted cash and cash equivalents at beginning of period	3,791	3,963
Cash, restricted cash and cash equivalents at end of period	4,557	3,504
Supplemental cash flow disclosures:
Income taxes paid	$ 3	$ 8