Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 2,117	$ 2,248	$ (6,162)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,755	2,182	2,450
Stock-based compensation	579	457	532
Loss on impairment of long-lived assets and goodwill of discontinued operations			1,700
Loss on disposition of property			4
Change in deferred gain	(110)	(110)	(110)
Change in allowance for doubtful accounts	15	(4)	(30)
Equity in loss of partnerships	208	228	262
Loss on sale of discontinued operations		120
Changes in operating assets and liabilities:
Accounts receivable	(842)	(2,183)	1,327
Inventories	(4,329)	(677)	1,221
Other assets	(13)	301	500
Accounts payable	1,588	626	707
Accrued expenses	(118)	(347)	(26)
Other liabilities	(139)	317	(60)
Net cash provided by operating activities	711	3,158	2,315
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment		66	39
Proceeds of sale of discontinued operations		500
Purchase of PC Werth (Note 4)	(197)
Purchases of property, plant and equipment	(3,982)	(1,524)	(969)
Other	(45)
Net cash used in investing activities	(4,224)	(958)	(930)
Cash flows from financing activities:
Proceeds from long-term borrowings	19,615	13,153	15,332
Repayments of long-term borrowings	(16,284)	(15,221)	(16,863)
Proceeds from employee stock purchases and exercise of stock options	340	165	145
Change in restricted cash	60	(32)	(18)
Net cash provided by (used in) financing activities	3,731	(1,935)	(1,404)
Effect of exchange rate changes on cash	(177)	(154)	11
Net (decrease) increase in cash	41	111	(8)
Cash, beginning of period	328	217	225
Cash, end of period	$ 369	$ 328	$ 217