Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating activities:
Net Income	$ 6,214,000	$ 29,688,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	(6,855,000)	(6,770,000)
Stock based compensation	(7,508,000)	(3,106,000)
Loss (gain) on disposal of property and equipment	0	(5,422,000)
Increase (Decrease) in Deferred Income Taxes	545,000	(21,229,000)
Environmental Remediation Expense	500,000
Changes in operating assets and liabilities:
Accounts receivable	(193,000)	(5,275,000)
Inventories	(2,915,000)	(1,713,000)
Prepaid expenses and other assets	(1,501,000)	(1,226,000)
Accounts payable and other liabilities	(2,851,000)	(1,980,000)
Other	935,000	525,000
Net cash provided by operating activities	20,299,000	7,204,000
Investing activities:
Purchases of property, plant and equipment	(2,524,000)	(1,256,000)
Payments to Acquire Businesses, Gross	(5,307,000)	(32,286,000)
Proceeds from sale of property	0	6,177,000
Net cash used in investing activities	(7,831,000)	(27,365,000)
Financing activities:
Net borrowings on revolving line of credit	(3,720,000)	13,595,000
Finance Lease, Principal Payments	(185,000)	(134,000)
Proceeds from Stock Options Exercised	14,000	20,000
Payments for Repurchase of Common Stock	(523,000)	(20,000)
Payments of Merger Related Costs, Financing Activities	(76,000)	(80,000)
Net cash (used in) provided by financing activities	(4,490,000)	13,381,000
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash:
Effect of Exchange Rate on Cash and Cash Equivalents	(511,000)	775,000
Increase (decrease) in cash and cash equivalents	7,467,000	(6,005,000)
Cash and cash equivalents at end of year	11,883,000	4,416,000
Restricted Cash and Cash Equivalents, Current	800,000	800,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 12,683,000	$ 5,216,000