Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows From Operating Activities:
Net earnings (loss)	$ 3,100	$ (597)
Adjustments to reconcile net earnings (loss) to cash (used in) provided by operating activities:
Gain on building sale	(7,175)
Stock based compensation expense	479	393
Depreciation	133	235
Amortization	158	160
Recovery of bad debt expense	(26)	(126)
Amortization of deferred loan costs	109	108
Non cash interest expense	1	32
Amortization of right of use assets	(47)
Changes in operating assets and liabilities:
Accounts receivable	408	39
Inventories	(1,739)	(272)
Prepaid and other current assets	(93)	(315)
Other assets	(806)	2
Income taxes payable	(17)
Accounts payable, accrued compensation and other accrued expenses	512	437
Net cash (used in) provided by operating activities	(5,003)	96
Cash Flows From Investing Activities:
Purchases of property and equipment	(205)	(72)
Proceeds on sale of building	9,765
Acquisition of licenses	(41)	(20)
Net cash provided by (used in) investing activities	9,519	(92)
Cash Flows From Financing Activities:
Net (repayments) proceeds of line of credit	(1,800)	95
Repayments of long-term debt	(3,037)	(189)
Proceeds from exercise of stock options	131	18
Net cash used in financing activities	(4,706)	(76)
Net decrease in cash	(190)	(72)
Cash, beginning of period	559	168
Cash, end of period	369	96
Supplemental Cash Flow Information:
Cash paid for interest	100	273
Non cash investing and financing activities:
Capital expenditures financed by notes payable	5	15
Conversion of subordinated convertible debt to common stock	$ 140	$ 455