Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (1,546)	$ 790
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,025	841
Stock-based compensation	347	314
Change in deferred gain	(55)	(55)
Change in allowance for doubtful accounts	(1)	(5)
Equity in loss of partnerships	109	99
Changes in operating assets and liabilities:
Accounts receivable	123	(51)
Inventories	(88)	(1,311)
Other assets	(587)	113
Accounts payable	(459)	1,249
Accrued expenses	(704)	(768)
Other liabilities	(102)	24
Net cash provided by (used in) operating activities	(1,938)	1,240
Cash flows from investing activities:
Purchases of property, plant and equipment	(1,263)	(1,670)
Other	(18)	(45)
Net cash used in investing activities	(1,281)	(1,715)
Cash flows from financing activities:
Proceeds from long-term borrowings	12,006	8,456
Repayments of long-term borrowings	(12,275)	(8,031)
Proceeds from equity offering, net of offering costs	3,697
Proceeds from employee stock purchases and exercise of stock options	53	71
Change in restricted cash	(28)	50
Net cash provided by financing activities	3,453	546
Effect of exchange rate changes on cash	(153)	(126)
Net increase (decrease) in cash	81	(55)
Cash, beginning of period	369	328
Cash, end of period	$ 450	$ 273