CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities
Net Loss	$ (391)	$ (15)
Adjustments to Reconcile Net Loss to Net Cash Provided by (Used in) Operating Activities
Depreciation and Amortization	561	595
Compensation on Stock-Based Awards	20	7
Deferred Taxes	(1)
Change in Contingent Consideration		(58)
Change in Accounts Receivable Allowance		(355)
Change in Inventory Reserves	183	142
Gain on Disposal of Property and Equipment		(354)
Changes in Current Operating Items
Accounts Receivable	(762)	380
Inventories	229	(1,161)
Contract Assets	308
Prepaid Expenses and Other Current Assets	81	91
Accounts Payable	317	1,452
Accrued Payroll and Commissions	(579)	(957)
Other Accrued Liabilities	576	(22)
Net Cash Provided by (Used in) Operating Activities	542	(255)
Cash Flows from Investing Activities
Proceeds from Sale of Property and Equipment		668
Purchase of Intangible Asset	(4)	(100)
Purchases of Property and Equipment	(288)	(198)
Net Cash Provided by (Used in) Investing Activities	(292)	370
Cash Flows from Financing Activities
Net Change in Line of Credit	146	735
Proceeds from Long-Term Debt		123
Principal Payments on Long-Term Debt	(222)	(1,026)
Principal Payments on Capital Leases	(82)
Share Repurchases	(126)
Net Cash Used in Financing Activities	(284)	(168)
Effect of Exchange Rate Changes on Cash	46	(10)
Net Change in Cash	12	(63)
Cash - Beginning of Period	779	268
Cash - Ending of Period	791	205
Reconciliation of cash and restricted cash reported within the condensed consolidated balance sheets
Total restricted cash reported in the condensed consolidated statements of cash flows	779	268
Supplemental Disclosure of Cash Flow Information:
Cash Paid During the Period for Interest	139	119
Cash Refunded During the Period for Income Taxes		227
Supplemental Noncash Investing and Financing Activities:
Property and Equipment Purchases in Accounts Payable	68	$ 91
Equipment Acquired under Capital Lease	$ 51