Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities:
Income (loss) from continuing operations	$ (1,629)	$ 297	$ (6,061)
Income from discontinued operations	0	0	(1,692)
Net Income (loss)	(1,629)	297	(4,369)
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities:
Depreciation and amortization	(8,066)	(8,543)	(8,751)
Stock based compensation	(2,469)	(2,093)	(6,376)
Loss (gain) on disposal of property and equipment	12	8	142
Increase (Decrease) in Deferred Income Taxes	31	0	8
Environmental Remediation Expense	0	931	340
Impairment of long-lived assets	0	0	3,046
Changes in operating assets and liabilities:
Accounts receivable	(3,252)	3,285	(2,415)
Inventories	2,229	(116)	882
Prepaid expenses and other assets	(45)	418	(2,202)
Accounts payable and other liabilities	(397)	6,381	7,696
Other	182	207	633
Net cash provided by operating activities	8,460	9,285	1,804
Investing activities:
Purchases of property, plant and equipment	(3,112)	(2,342)	(2,759)
Payments to Acquire Businesses, Gross	6,030	441	0
Proceeds from sale of property	0	3	8,307
Proceeds related to the sale of businesses, net	0	0	12,125
Net cash (used in) provided by investing activities	(9,142)	(2,780)	17,673
Financing activities:
Net borrowings on revolving line of credit	(84)	925	(16,078)
Proceeds from Stock Options Exercised	0	50	53
Net cash provided by (used in) financing activities	(84)	975	(16,025)
Discontinued operations:
Effect of Exchange Rate on Cash and Cash Equivalents	422	(922)	57
Increase (decrease) in cash and cash equivalents	(344)	6,558	3,509
Cash and cash equivalents at beginning of year	10,765	4,207	698
Cash and cash equivalents at end of year	$ 10,421	$ 10,765	$ 4,207