Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income (Loss)	$ (1,228)	$ 166
Adjustments to Reconcile Net Income (Loss) to Net Cash
Depreciation	1,926	1,877
Amortization	295	312
Compensation on Stock-Based Awards	145	126
Compensation on Equity Appreciation Rights	116
Deferred Taxes	20	1
Change in Accounts Receivable Allowance	113	13
Change in Inventory Reserves	374	268
Loss on Disposal of Property and Equipment	32
Changes in Current Operating Items
Accounts Receivable	1,413	(2,746)
Inventories	2,344	(3,875)
Contract Assets	(1,228)
Prepaid Expenses and other Curent Assets	(1,015)	(302)
Income Taxes	401	(76)
Accounts Payable	(3,680)	6,028
Accrued Payroll and Commissions	746	(154)
Other Accrued Liabilities	223	806
Net Cash Provided by Operating Activities	997	2,444
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Sale of Property and Equipment		14
Purchase of Intangible Asset	(39)	(4)
Purchases of Property and Equipment	(719)	(1,400)
Net Cash Used in Investing Activities	(758)	(1,390)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Line of Credit	823	761
Principal Payments on Long-Term Debt	(856)	(1,374)
Principal Payments on Financing Leases	(369)
Stock Option Excercises	7
Share Repurchases	(130)	(276)
Net Cash used in Financing Activities	(525)	(889)
Effect of Exchange Rate Changes on Cash	(1)	3
Net Change in Cash	(287)	168
Cash - Beginning of Year	947	779
Cash - End of Year	660	947
Reconciliation of cash and restricted cash reported within the consolidated balance sheets
Cash	351	480
Restricted Cash	309	467
Cash - End of Year	660	947
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Interest	980	719
Cash Paid for Income Taxes	194	335
Supplemental Noncash Investing and Financing Activities:
Property and Equipment Purchases in Accounts Payable	4	445
Equipment Acquired under Capital Lease	$ 1,089	$ 100