Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ 757	$ (655)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	654	562
Stock-based compensation	333	218
Loss on sale of discontinued operations		164
Change in allowance for doubtful accounts	151	(3)
Equity in loss of partnerships	116	12
Changes in operating assets and liabilities:
Accounts receivable	(2,407)	(888)
Inventories	(1,183)	(553)
Other assets	(1,648)	(631)
Accounts payable	2,262	1,670
Accrued expenses	(316)	(531)
Other liabilities	26	51
Net cash used in operating activities	(1,255)	(584)
Cash flows from investing activities:
Purchases of property, plant and equipment	(485)	(273)
Investment in partnerships	(164)	(94)
Net cash used in investing activities	(649)	(367)
Cash flows from financing activities:
Proceeds from long-term borrowings	6,106	4,520
Repayments of long-term borrowings	(4,550)	(3,920)
Proceeds from employee stock purchases and exercise of stock options	267	60
Change in restricted cash	(55)	(21)
Net cash provided by financing activities	1,768	639
Effect of exchange rate changes on cash	144	25
Net increase (decrease) in cash	8	(287)
Cash, beginning of period	373	667
Cash, end of period	381	$ 380
Noncash Transactions:
Investment in partnerships through liability incurred	308
Acquisition of property, plant and equipment in accounts payable	$ 305