Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ (558)	$ (1,546)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,105	1,025
Stock-based compensation	425	347
Gain on disposition of property		(55)
Loss on sale of discontinued operations	164
Change in allowance for doubtful accounts	20	(1)
Equity in loss of partnerships	24	109
Changes in operating assets and liabilities:
Accounts receivable	(1,043)	123
Inventories	(1,662)	(88)
Other assets	(458)	(587)
Accounts payable	2,113	(459)
Accrued expenses	432	(704)
Other liabilities	(37)	(102)
Net cash provided by (used in) operating activities	525	(1,938)
Cash flows from investing activities:
Purchases of property, plant and equipment	(618)	(1,263)
Other	(100)	(18)
Net cash used in investing activities	(718)	(1,281)
Cash flows from financing activities:
Proceeds from long-term debt	7,481	12,006
Repayments of long-term debt	(7,843)	(12,275)
Proceeds from equity offering, net of offering costs		3,697
Proceeds from employee stock purchases and exercise of stock options	129	53
Change in restricted cash	(56)	(28)
Net cash provided by (used in) financing activities	(289)	3,453
Effect of exchange rate changes on cash	178	(153)
Net increase (decrease) in cash	(304)	81
Cash, beginning of period	667	369
Cash, end of period	$ 363	$ 450