Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash Flows From Operating Activities:
Net loss	$ (384)	$ (1,195)
Adjustments to reconcile net loss to cash (used in) provided by operating activities:
Depreciation	321	440
Amortization	321	532
Stock-based compensation expense	386	209
(Reversal of) provision for inventory reserves	(49)	128
Non cash pension expense (income)	9	(63)
Deferred income taxes	(35)	10
Amortization of loan fees	144
Non cash interest expense	248	53
Equity based directors' fees	51	261
Change in derivative liability	142	83
Changes in operating assets and liabilities:
Accounts receivable	(348)	159
Inventories	(242)	856
Prepaid and other current assets	(76)	2
Other assets	(21)	(311)
Income taxes payable	7	9
Accounts payable, accrued expenses and accrued compensation	(711)	(402)
Net cash (used in) provided by operating activities	(237)	771
Cash Flows From Investing Activities:
Capital expenditures	(138)	(37)
Acquisition of licenses	(62)	(19)
Net cash used in investing activities	(200)	(56)
Cash Flows From Financing Activities:
Net borrowings (repayment) on line of credit	367	(544)
Repayments of debt	(230)	(3,612)
Borrowings of debt		3,500
Borrowings from related parties		400
Net cash provided by (used in) financing activities	137	(256)
Net (decrease) increase in cash	(300)	459
Cash, beginning of year	468	9
Cash, end of year	168	468
Supplemental Cash Flow Information:
Cash paid for interest	300	375
Cash paid for income taxes
Non cash investing and financing activities:
Capital expenditures financed by notes payable	$ 10	$ 61